Envy is worth talking about. It seems to pull a lot of people, like one of the strings in string theory. They want to be envied so they live an exhibitionist life, or they were surpassed by someone they thought was their equal and now they hate the gap. Is it possible people who feel envy then decide to be more exhibitionist, so they can be envied in the future?

I wonder what value envy provided to evolution? Did it motivate primates to do more than they are already doing? Is it a by-product of social status behaviors?