I didn't spend a great deal of time looking, I grabbed the first image small enough to fit and I still had to crop out some extraneous info at the bottom. I've long known of the analogy and find it very fitting to the human condition. Most folks are oblivious to this tendency.
I really don't trouble myself with hierarchies. I know they exist. I know some folks enjoy "playing the game" and "climbing the ladder." The loner in me doesn't really care, and I try to stay out of buckets and avoid crabby people.