Social hierarchy

Even when humans try to stabilise hierarchy by caste and heredity for centuries, there is still dynamicity to it (unavoidably). The people who try to say "there is no hierarchy" or "hierarchy is bad" have that old dynastic conception in mind. Hierarchy has never been limited to this. Hierarchy is also about altruism, camaraderie, brotherhood, treating people right, etc. And all sorts of random things, or things like being able to give a massage or plant flowers or protect animals.