The Relationship Between Jealousy and Inequality

Jealousy has been proven over and over by human beings, you know? And it's been proven by monkeys too. But what does jealousy have to do with what we're talking about? That's what I'm curious because you can you can have one with the other. Like Kamar can say, I really want to treat Simon well because I want him to treat me well, but I'm also jealous of Simon's life.