Yep, we are critters with instinct....so the question of society becomes this: how can we organize ourselves to optimize happiness and peaceable community, and minimize conflict and strife? I think the solution has to do with units of society that are more tribal in size. The problem for most of us is that we do no have a tribe, so we are like lone wolves, always on guard, never fully happy or relaxed. Having a partner is not the same as having a tribe, but it is a step in the right direction.