Money's existence is not as bad as the existence of religion but hey, that's another topic.
Wealth is monetary. Personal gratification and self-esteem are separate and utterly disparate entities. Wealth doesn't gaurantee personal gratification and/or self-esteem.
Osama Bin Laden is a son of a multi-billionaire Saudi. Yet he spent most of his life sleeping on dirt floors and eating rice. I'm sure he's happy doing what he's doing.