> Everybody believes their interests weigh more
I don't. I believe I have to weigh my benefits to collective ones. Sometimes I do things that offer me no benefit whatsoever but does for others. Just the other day I offered to take a picture for a couple who was trying to get a selfie together. Last week I bought an intern lunch. Why? Because they were an intern (grad student) and I'm sympathetic to that.Fun fact: I'm not a "rare outlier". People like me are pretty common and can be found all over. We usually just don't openly talk about it because we're not looking for a reward. I'm not speaking up now because I'm looking for self-gratification or anything. I'm speaking up to push back against your claims. I'm speaking up because we live in an increasingly selfish period of time. I'm speaking up because we're also at cultural turning point and many people are saying "enough is enough." I sure as hell don't care how rich you are, but I do give a damn about where the economic floor is. If you take from that floor to lift yourself up, I'm upset. If you do this to lift yourself when you already have more money than you could possibly spend in several generations? I'm furious.
I don't. When I make decisions that might benefit me but affect others, I consider the impact on others before deciding what to do. Sometimes (often?) I choose the option that benefits me less (or is neutral, or hurts me), if I believe the negatives to others are too high.
I didn't say that means they don't consider others, and I haven't taken a survey of everybody on the planet.
Obviously people believe their interests weigh more.