People accept that being altruistic is good before actually thinking if they want to do it. And they also choose weird axioms for being altruistic that their intuitions may or may not agree with (like valuing the life of someone in the future the same amount of someone today).
Related: Saving the world sucks
People accept that being altruistic is good before actually thinking if they want to do it. And they also choose weird axioms for being altruistic that their intuitions may or may not agree with (like valuing the life of someone in the future the same amount of someone today).