Picture a philosophy student ordering tap water in the pub while his friends drink pints. He’s secretly refilling his glass with cheap lager he smuggled in. Not because he’s broke – because every pound he doesn’t spend on beer could buy a malaria net that saves a life.

Meet Will MacAskill, founder of Effective Altruism. A movement of hyper-rational do-gooders who’ve calculated their way to moral perfection.

They have a point. A brutal, unanswerable point.

The Drowning Child Problem

Philosopher Peter Singer posed this thought experiment: You’re walking past a pond. A child is drowning in the shallow water. You could easily wade in and save them, but it would ruin your expensive new shoes.

Of course you’d save the child. Anyone who walked past would be a monster.

But right now, a child is dying of preventable disease somewhere in the world. You could save that child’s life for less than the cost of those shoes you were worried about ruining.

What’s the moral difference? Distance? The fact you can’t see them?

Singer’s logic is flawless. If you buy expensive shoes instead of donating to charity, you’re essentially stepping over that drowning child.

The Effective Altruists took this seriously. They started giving away everything above subsistence level. They researched which charities saved the most lives per pound. They optimised their altruism like a hedge fund optimises returns.

The Guide Dog Problem

Here’s where it gets interesting for the rest of us in the charity world.

Guide Dogs raises over £100 million a year in the UK. They’re brilliantly successful fundraisers. Cute dogs, heartwarming stories, clear emotional connection.

But an Effective Altruist would ask uncomfortable questions: Is a guide dog really the most effective way to help someone who’s blind? What about technology solutions that help thousands instead of pairing one person with one dog?

Guide Dogs doesn’t ask these questions. They’ve found what works: dogs are photogenic, partnerships are personal, donors feel good about both.

It may not be the most effective solution. But it’s the most effective fundraising.

The Crypto Catastrophe

This tension between rational effectiveness and human psychology explains what went wrong with Sam Bankman-Fried.

Here was the Effective Altruist dream: a brilliant young man making billions in crypto trading, not for personal gain, but to give it all away. The ultimate “earning to give” success story.

Until it all collapsed in fraud and bankruptcy.

Bankman-Fried had calculated that stealing customer deposits was worth the risk if it meant more money for good causes. He funded political campaigns for candidates who’d never heard of him, because an algorithm suggested they might prevent future pandemics.

Pure logic. Zero humanity.

The Human Problem

The Effective Altruists are right about almost everything. Malaria nets do save more lives per pound than most charity appeals. Preventing future pandemics probably is more important than today’s local fundraising drive.

But they’ve missed something crucial: humans aren’t rational calculating machines.

We care more about the child in front of us than the statistical child in a faraway country. We give more to charities with cute mascots than those with the best cost-per-life-saved ratios. We’re moved by individual stories, not aggregate statistics.

Evolution built us this way. Our ancestors who cared equally about everyone probably didn’t survive to pass on their genes. Those who prioritised family, tribe, and visible need did.

The Reframing Challenge

So what does this mean for charities trying to do genuinely effective work?

You can’t change human nature. But you can work with it.

Look how Movember transformed men’s health. They could have led with prostate cancer survival rates and depression statistics. Instead, they made it about men having awkward conversations while growing ridiculous facial hair.

The moustache isn’t the most effective way to prevent prostate cancer. But it’s the most effective way to get men talking about prostate cancer.

The Uncomfortable Truth

The Effective Altruists have forced an uncomfortable question on the entire sector: How much of our fundraising success comes from being effective versus being emotionally appealing?

Most charities would rather not answer that question.

But the best ones are finding ways to be both. They’re using human psychology to achieve genuinely effective outcomes. They’re making the rational choice feel like the emotional choice.

They’re not trying to turn donors into calculating machines. They’re making their cause the one that donors’ hearts as well as heads can choose.

Because ultimately, money given for imperfect emotional reasons still saves lives that wouldn’t be saved at all.

The Effective Altruists may have optimised altruism. But they forgot to optimise for humanity.

In the end, that might be the most ineffective mistake of all.

—

Fuzzy Logic is a series from Hope, a charity communications and fundraising agency. The series explores the imprecise and uncertain world of branding, marketing, persuasion, fundraising, and allied fields, particularly as they apply to charities, social impact businesses, causes and not-for-profits. Written by Michael Isaacs.