Weird idea that men acting on self-interest would aim to benefit all men (some of whom are rivals and most of whom they don't know), rather than aiming to benefit themselves and their nearest and dearest – many of whom are women (mothers, wives, daughters, friends, etc.).https://twitter.com/UN_Women/status/1214254065548513281 …
I think self is too hard to define. There’s always a group identity in there somewhere. “Selfish” men for example may be identifying with with “manly” group beliefs based on what they absorbed growing up. Say b/c men w/ stable families were rare in their circle.