Evolutionary psychology and anthropology do not support this conceptualization. Hunter gatherer societies were egalitarian and survived on cooperation. If one member was violent and/or seen as relatively unpredictable they were simply left behind (ostracized) or killed by the rest of the tribe (capital punishment).

In fact, some evolutionary biologists believe this collective culling of highly aggressive individuals over tens of thousands of years actually self-domesticated humans, making our species naturally more cooperative and less prone to random internal violence.

This is what anthropologists refer to as a reverse dominance hierarchy ie. the individual attempting to dominate would be culled while the cooperative collective was the truly dominant force. It's, in a way, a precivilizational form of democracy.

One has to wonder if we've forgotten these ancient corrective mechanisms.

And which scientist or historian told you that?