I've read a lot about anthropology as a lifetime National Geographic reader and high school teacher. I have watched a lot of video and have taken classes and listened to many lectures on the subject, which is a fascination to me. As I said in my original post, organization by it's very nature is based on hierarchy, At some point in any productive endeavor, there has to be someone directing it. People generally don't mind this because those calling the shots also have more responsibilities. In sports, if the team sucks the coach is the first to get the sack.
Any activity that relies on endless meetings where some concensus has to be reached to function is a bunch of bullshit. While the issue is tied up in another meeting, and there is no backlava or donuts and the coffee sucks, no work is actually happening, and no tangible benefits are being provided. In traditional societies things are simple enough that you don't need many meetings to keep things moving in the direction where everyone stays alive.
Please list those documented civilizations that had no hierarchy. The Spartans were pretty egalitarian, but they relied on the helot slaves that were 80% of the population to provide food and dig ditches and women to rape and whatever else they wanted. They sharpened their martial skills by launching campaigns against the untrained, unarmed helots so the youngsters could get their swords wet.