"Entrepreneurship certainly has vastly more potential to make you rich"? Well, you might be the next Larry Ellison, in the same way you might start a band and become as rich as U2. If wealth is your goal, an MBA and a job in investment banking is a far more reliable and reproducible path.
As I see it, most just hope to be able to make a living building software (/playing music/farming/etc) independently. Getting rich is a very rare byproduct.