I'm at the top 10% income earners in a wealthy country and I don't feel think I've necessarily earned it more than the other 90% of the population. I lucked out. I had loving parents that guided me and pushed me to have an education. I don't suffer from any mental or physical disease. Seriously, going to school to get a degree and learning on my own how to build software systems, that's the easy part and wouldn't have been possible if I didn't have the luck of being born in the right social circumstances and with the right biology traits (health and smarts).