The real issue here is that there are (at least) two ways to go about starting a startup. You can go for changing the world, and in that case you must face the

The real issue here is that there are (at least) two ways to go about starting a startup. You can go for changing the world, and in that case you must face the fact that you could fail and end up with a niche business. You can also go for maximizing profits. The latter may not result in a world change, or it may. It simply changes your focus. Failure is still out there—both of these approaches can lead a completely nuked business. Hell, both can lead to a niche business if you don't do them right.