How do you measure success? A pile of money in your bank account or making an impact on the world?

Was Mother Theressa successful?

In the software world, what about people like Linus Thorvalds, Larry Wall, or even Richard M Stallman. People who did not seek to maximize the money they get from what they make. They've certainly left their mark in the computer world. But they did seek to turn it into a big pile of cash like what Marc Andreesson got. Not to say that doing so is bad or evil in anyway. But does refraining from doing so mark you as unsuccessful?