Maybe the ability to be content is not that common and people who just cannot do it are secretly envious of and angry at those who can? For example, I've never been content in any job (barring some honeymoon periods or particularly interesting short episodes). It's pretty much always a grind to get that paycheck at the end of the month. At this point, I don't think I could be content with any job. It's possible that I've chosen a wrong career and have broken myself over years of working in it - hard to tell.
