When people trade favors, both parties end up equal, more or less, and so it is easy to think (as I had) that reciprocal altruism was the source of moral intuitions about equality. But egalitarianism seems to be rooted more in the hatred of domination than in the love of equality per se.48 The feeling of being dominated or oppressed by a bully is very different from the feeling of being cheated in an exchange of goods or favors.
