Ideally, a person is able to earn money doing something that matches one's authentic self. In other words, working in a field that is also passion and involves an innate talent or ability can add a lot to the happiness of a life. Many people get sidetracked, whether by greed or limited opportunities. Still other people do not know what their passions are, or have not realized what natural talents, or "gifts," could be tapped. Some people get trapped in dysfunctional organizations in which the organizational culture discourages self-discovery or is otherwise negative and even vindictive.
The full essay is at "I Wasn't Supposed To Be A Writer."