Are All Your Good Deeds Secretly Selfish?

The soldier on the grenade

A soldier is on a battlefield. Suddenly a live grenade lands near his friends. Without a pause, he jumps onto it, smothering the blast with his own body. He dies, but the others live.

What made him do it? Most of us would say he wanted to save his comrades. But a strange and powerful idea denies that answer. It says that, deep down, the soldier was still looking out for number one. Maybe he couldn’t bear the guilt of doing nothing — his own peace of mind mattered most. Or maybe he believed a heroic afterlife awaited him.

This idea is called psychological egoism: the claim that every human action, no matter how kind it looks, is ultimately aimed at the agent’s own welfare. Your welfare is your well‑being — your happiness, pleasure, or getting what you want. Psychological egoists don’t deny that you can help others. They just insist you do it because helping somehow pays off for you, even if you don’t notice it.

If that’s true, selfless behaviour is an illusion. And that changes everything about how we understand heroes, friends, and ourselves.

The hidden selfishness theory

Psychological egoism sounds cynical, but it has some appeal. Take a moment and think about the last time someone was nice to you. Did they hope for a thank‑you? Were they avoiding a scolding? We often see that apparently generous acts have a self‑interested reward tucked inside. If your little brother shares his candy, maybe he expects you to share yours later.

But does that mean every kind act has a hidden selfish motive? The 18th‑century philosopher Joseph Butler (1692–1752) spotted a problem. Suppose you love hockey. You lace up your skates and feel a rush of joy. Why? Because playing hockey increases your welfare. Yet, Butler argued, to get that joy you must first want to play hockey for its own sake. If your only goal were your own welfare, the thrill would never happen. You need a desire for something beyond your welfare — like the fun of the game itself.

The psychological egoist can push back: the desire to play hockey is still a self‑regarding desire, because it aims at your own pleasure. Your welfare might simply be made up of satisfying such self‑regarding desires. So Butler’s point doesn’t settle the debate.

Then the soldier returns. Imagine asking him why he jumped on the grenade. He’d probably say, “I wanted to save my friends” or “It was my duty.” He would find it ridiculous to be told he acted out of self‑interest. The egoist might reply that the soldier is lying to himself — his brain secretly calculated that a quick death was better than a lifetime of guilt. That’s possible. But is it proven for every case? Not at all. Without proof, psychological egoism looks like a guess, not a discovery.

Batson’s empathy experiments

If you want to know whether people ever act selflessly, you can’t just imagine. You need evidence. That’s where the psychologist Daniel Batson (b. 1943) enters.

Batson designed experiments around empathy — the ability to feel what someone else is feeling. He told participants they were observing another person (really an actor) being given painful electric shocks. Some participants were encouraged to feel strong empathy for the victim. Then they were given a choice: they could either help by taking the remaining shocks themselves, or they could end the session and leave the room, stopping their own discomfort right away.

If psychological egoism were correct, the high‑empathy group should take the exit — that’s the quickest way to end their own distress. But Batson found the opposite. Many high‑empathy participants chose to stay and help, even when escape was effortless and even when they believed their actions would remain completely secret — so there was no social reward. Batson tested one selfish explanation after another: maybe they were trying to avoid guilt, maybe they expected praise from others, maybe they just wanted to feel like heroes. None of these explanations fit the data as well as the simple altruistic hypothesis — that empathy can spark a genuine, non‑instrumental desire to help someone for their own sake.

These results don’t prove that all helping is selfless. Some philosophers still embrace predominant egoism: the idea that we act unselfishly only rarely, and usually when the cost is small. But for the strong version of psychological egoism — “you never act except for your own welfare” — Batson’s work is very bad news.

So should we be selfish? Ethical egoism

Even if we can be unselfish, maybe we should always put ourselves first. That’s ethical egoism, a view about what is morally right. It says I morally ought to do something if and only if—and because—it maximises my own self‑interest.

At first, ethical egoism doesn’t seem so harsh. If I break my promises or refuse to cooperate, others will stop trusting me and might even attack me. So being helpful and honest often gives me the best long‑term payoff. The egoist can argue that selfishness generates many of the same duties we find in ordinary morality.

But the match isn’t perfect. Imagine a drowning stranger who has no connection to you. She can never repay your kindness, and nobody will ever know what you did. Ethical egoism would not require you to jump in and ruin your expensive shoes, unless the boost to your conscience outweighs the cost. Standard moral theories say you should help anyway, at least when the sacrifice is small.

What about enormous sacrifices? Ethical egoism has no way to justify the soldier falling on the grenade. There’s no long‑term gain for a dead person. So heroism that costs you everything can’t be demanded by a theory built on self‑interest.

Later, G. E. Moore (1873–1958) raised a logical problem. If “my own good” is something genuinely good, then it makes the world better — and everyone has a reason to promote it. But the ethical egoist says I should care only about my own good, not yours. That seems inconsistent: I’d be saying “my happiness is a real good,” yet I would refuse to admit that others have a reason to bring it about. Some egoists reply by saying “my good” simply means “good‑for‑me,” a special kind of value that doesn’t give reasons to others. The debate rages on.

Rational egoism: what you have most reason to do

Many philosophers, seeing the troubles with ethical egoism, turn to a different question. Forget whether selfishness is moral. Ask instead what you have most reason to do. Rational egoism claims that you ought, rationally, to do what maximises your own welfare.

Instantly, rational egoism runs into the arbitrariness worry. You feel your own headache, not your neighbour’s. But why should that make your pain a stronger reason for action than hers? Just because it’s yours? As Henry Sidgwick (1838–1900) put it, the line between you and anyone else seems real and fundamental — maybe that’s reason enough. But many think that’s like saying you should favour blue‑eyed people simply because they have blue eyes. Something more is needed.

Another challenge comes from the instrumental theory of rationality. It says you have most reason to do whatever best satisfies your own preferences — not just the ones about your own welfare. If your strongest preferences include helping strangers even at a real cost, then instrumental rationality can support self‑sacrifice. Rational egoism has to explain why only self‑interested preferences count.

Derek Parfit (1942–2017) attacked rational egoism from a new angle. He asked: what makes me care specially about my own future self? Perhaps it’s psychological continuity — shared memories, personality traits, and goals. But if that’s what matters, then I should also care about other people with whom I share those connections today. Imagine a machine that splits your brain into two new people, each carrying your memories and personality. Neither one is strictly identical to you, yet you’d probably care deeply about both. Parfit argued this shows that special care doesn’t follow the neat boundary of “me” versus “everyone else.” It blurs the line, making rational egoism’s exclusive focus on the self look shaky.

Some also run an evolutionary debunking argument. If natural selection rigged our brains to believe we should always put ourselves first, then that belief might be just a survival trick, not a trustworthy guide to the truth. But debunking cuts both ways, and rational egoists have replies. The view is bruised, but not yet knocked out.

Why it matters when you share your lunch

Suppose you’re at lunch and your friend forgot theirs. You hand over half your sandwich. You feel warm inside. Later, a little voice whispers: “Did I do that because I really care about my friend, or did I just want to feel like a good person?”

That whisper is where philosophy lives. If psychological egoism were the whole truth, then every kind act is just a strategy, and the soldier on the grenade is no different from someone who pushes another onto the explosive to save himself. But if altruism is real — as Batson’s experiments and Butler’s logic suggest — then some people genuinely put others first, and that makes them worthy of a special kind of admiration.

The fight over egoism is not a dusty museum piece. It shapes how we understand friendship, guilt, punishment, and heroism. It helps you judge whether your own motives are decent or self‑deceived. And it reminds you that the simple question “Why did you do that?” often leads into a deep and unsettled maze — one that philosophers have been exploring for centuries.

Think about it

1. If a scientist could predict with 100% accuracy that you’ll share your lunch tomorrow, would that mean you don’t have a choice — or does knowing the future just describe what you’ll freely decide?
2. Is it possible to help someone without getting any good feeling from it? If you did get a good feeling, does that make the act selfish?
3. What would it take to convince you that a person you admire really acted selflessly — not for praise, not for a warm glow, not for any reward?