Society needs lots of different kinds of people, with lots of different kinds of psychologies, to thrive. There are times when a mistrust of outsiders is necessary for a culture to repel a threat. There are times when enthusiasm about change is the only thing standing between a society and stagnation. Open isn’t better than closed. Conscientious is a trait, not a compliment. Evolutionarily, the power is in the mix of outlooks, not in any one outlook—that’s why this psychological diversity has survived.
