Dunno if you listen to Ezra Klein but he had an anthropologist on once who described this tribe of humans who when someone came back having bagged big game, they had to run a gauntlet of everyone else downplaying their accomplishment like "that's not that big, your father caught bigger", and "maybe one day you'll bring down an adult deer" etc. The whole idea was like, egomaniacs are pretty bad, and they had a cultural defense against it.

I often think a weakness of liberal, western society is the insistence on rationality, that like the hunter in question could just easily put their abilities and accomplishments alongside those of others and get a pretty accurate picture. This is super untrue; we need systems to guard against our frailties, but we can't admit we have them, so we keep falling into the same ditches.