I don’t need a made up storey to know that things would be better if people were nicer to each other. Being nice so that a sky fairy doesn’t torture you for eternity is ridiculous.
I would love it if we could live in a state where everyone worked hard for everyone else. But there’s too many people who are lazy and take advantage of other whenever they can. So we need a framework of regulations to make society function, and we need motivation for people to be productive and pull their weight when they can.