"In each generation the human mind... reverts to its starting point;
each new man is a primitive man."
~ Alexandre Vinet ~
I recently witnessed two male sheep butting heads. They ran straight for each other and made direct, hard, horn-cracking contact, then retreated several steps and did it again, and again, and again. Eventually, one of them buckled a bit and moved off sideways instead of straight back, and it was over.
This sort of pecking order is established routinely in the animal kingdom, so there must be some evolutionary basis for it, and, though maybe less directly, and whether we like it or not, the same phenomenon must play out on some level in the human realm as well.
I accept that as human beings, we are at least somewhat subject to our animal instincts.