If we’re talking about human nature, we might want to consider our closest relatives: chimpanzees and bonobos. Chimpanzee communities tend to be more hierarchical and far more violent than bonobo communities. If we can understand why this is so, we might be able to apply the lessons to our own communities. One recurring suggestion is that one of the causes might be endocrinological; male bonobos have much lower testosterone levels than male chimpanzees, while female bonobos have slightly higher testosterone levels than female bonobos. I haven’t been able to find info on their other hormones or how their levels compare with human levels. Anyway, if there were less testosterone in the community, for example if male hormone balances shifted closer to female hormone balances, fewer people might initiate dominance behavior, and fewer might need to adopt dominance behavior as a social survival strategy.