Everyone has a destiny, but how we change that destiny for the better based on the opportunities available. God gives everyone an equal opportunity to achieve a good life, but it depends on how strong and consistent we are in pursuing it. This isn't about comparing ourselves, but rather using others as motivation to become better ourselves.
With wealth distribution being the toughest realistic occurence in the economical world, the rich and poor are just of a slim gap difference. Comparison I have noticed, is a normal human psychology, people must compare themselves, even the rich isn't free of this thought. I'll tell you, nobody has it all, the rich also beg, humans are humans, when you don't own something, you're likely going to beg those who have it, regardless of their economical standard. A boy from a rich home, may never have his parents offer him the kind of food he enjoys from his friends whom they're richer than, he'd have no other option than to beg them to have some.