On Robin Hanson's recommendation, I've been reading Hierarchy in the Forest by Christopher Boehm. Basically, it's a discussion of hierarchy and egalitarianism in primates and primitive humans.
Primates occasionally exhibit reverse dominance strategies, where the lower-ranking members band together to conquer the alphas. On the other hand, mobile hunter-gatherer societies apparently universally exhibit this behavior. It is apparently fairly standard for the crime of "giving orders to others" to be punishable by death, and implemented by the whole tribe. Until a would-be leader can afford to pay soldiers to do as he orders...there is only equality.
In sum...of the last ~100,000+ years, at most the last 10,000 have been characterized by units larger than the family allowing hierarchy at all...and the times we've seen it imposed, it's almost exclusively unwillingly. Autonomy and egalitarianism seem to be among human males' primary concerns.
The ability to not be ordered about seems to be very deep in the human psyche...with Braveheart, the American rebels, or the Egyptian protesters being the standard model marred by occasional aberrations like kings.
And this furthermore supports the libertarian model. Life was pleasant-ish in clans, until thugs with clubs killed anyone who didn't do what they were told. Governments are morally equivalent to mafias...but with better propaganda.
The book ain't easy reading, but it's quite worthwhile.