You wanted an example of a bad hierarchy and I mention that one because it’s one of the most obvious, glaring examples (and since you asked that question, I assumed you needed the most obvious answer). I would expect you to be intellectually honest enough to concede that I’ve already made my point quite thoroughly.
Peterson doesn’t say only contemporary hierarchies are natural and good; he says all hierarchies. He talks about lobsters, for fuck’s sake and we haven’t shared a biologically common ancester with them for 700 million years. Low serotonin in humans can increase aggression, while decreasing it in lobsters. We have nothing much in common. It’s just yet another one of those things that he’s pulled out of his ass.