People feel ashamed of their low status jobs because they accept the myths we were taught by public education and advertising. The western world is competitive in the sense of someone wins and someone loses. When you assess your employment situation, you're considering whether you're one of the winners or losers. Hedge fund manager? Winner! Janitor? Loser!
In reality, the hedge fund manager contributes very little while we would all notice if the janitors and maids of the world disappeared. The high and low status associated with these professions are just a meme, there is no objective basis in finance being "good" jobs and service being "low skilled, poor" jobs
RE: Capitalism, Necessity, and Stigma