Shouldn’t income drive a career just as much, or more than passion?

Often I hear people talk about their passion to do a job or career. Those who aspire to a job or career, many have to know they will never be wealthy doing it. If you have a passion for cooking, let say, unless you are very lucky, you will never be wealthy or even well off. In this economy, is passion really going to be enough? Isn’t it smart to think about overall income or income potential? Having passion for teaching, gymnastic, or studying animals, etc. is no guarantee you won’t retire broke.