Citing Kant and his categorical imperative, Munger argues that “reciprocal courtesy” is a societal norm, at least in United States. When we are not treated fairly, often we become very angry and/or frustrated.
In a famous Prisoner’s Dilemma experiment, when one person feels betrayed by another, that person will not act out of his/her own immediate self-interest in order to punish the other person.
Source:
Michael Simmons & Ian Chew
