Because you insist on behaving in a passively-aggressive uncivil manner, ignoring the facts and data that I put before you in favor of pie in the sky "but I just know" kinds of shit. Yes, humans have impulses towards putting themselves into hierarchical rankings, AND the way that humans evolved and lived for millions of years is that they actively suppressed those inclinations with reverse dominance hierarchies where the rest of the community keeps such people in check. This is what I've said to you over and over and over again and instead of accepting that and understanding it, you come back with more stuff that discounts it, even going so far as to say that you know more about this than the head of the Jane Goodall center when faced with facts that you can't refute in any substantive way. Pfft!
And no, all societies do not have leaders. Current forager groups operate without leaders (making it incredibly likely that ancient ones did not either) and neither did early proto-agricultural enclaves such as Catalhuyuk which came out of those Paleolithic forager bands, which I already linked you a story about, including this quote from the anthropologist who heads the research site, "Ian Hodder (current archeological director of the site) does believe that it was this highly developed system of beliefs and rituals that helped the settlement to be cohesive in the absence of leaders (for 2 thousand years).
So yeah, we're done here because I've had just about enough of yet another man who can produce nothing other than his say so to debate my well researched and clearly written stories. You don't know what you're talking about, you've admitted that you are not an expert, and yet, still have no problem opining about how things are and challenging those who are actual experts with nothing other than your say so about how you believe the world works. You cannot be swayed by logic, reason, data, or the scientific opinion of those who have actually studied these topics, and you’ve presented nothing to support your assertions, so there is no further point. You are deep in cognitive dissonance and I'm not going to waste any more time.