That's true, but you actually have to build something outstanding first.
I think the point is merely that aspiring hackers should consider what they really want to do, and what they're best at. PG popularized the idea of startups for hackers in a good way, but I think people should also keep in mind examples like Torvalds, Andrew Tridgell, Guido van Rossum, and others who seem to like to really concentrate on their tech, and leave the money making to others.