this might make me sound stupid lol but i dont actually think selfishness is inherently a bad thing. yes, obviously a lot of bad things r done out of selfishness, but the trait itself is something that every single human (and most other creatures) possess, and it can actually be helpful. if everyone was so automatically selfless that they would die to save one another, then everything would kind of crumble. selfishness, in moderation, keeps people alive and keeps the world going. its like the airplane thing where u have to put on ur own mask before helping others, if everyone is a little selfish and looks out for themselves then everyone will (theoretically) be ok