But rationality isn't about effectiveness in achieving the things you are evolutionarily optimised for, because those things don't necessarily line up with the

But rationality isn't about effectiveness in achieving the things you are evolutionarily optimised for, because those things don't necessarily line up with the things you want! There's no a priori reason to value evolutionary goals over goals you pick for yourself. That would be an appeal to nature. If helping other people is really something you care about and value intrinsically, then rationality is about finding the most effective ways and means of helping other people.