[dman]

Great points. Though one tangential thing is - MBA school is largely not funded and I believe this largely cuts out the ability of people with MBA's to be in a startup at the early phase. I do not doubt the fact that a lot of MBA's and lawyers are very smart innovative people, just that the cost of their education often undermines their ability to take risk.

[samt]

That and life stage. By the time you graduate from b-school a spouse, family and house are coming soon. The years in which one can earn ramen wages are precious and b-school takes up two of them, often at what might otherwise be your living expenses vs experience peak.

[afi]

I don't know how this works in the US, but here your MBA will generally be sponsored by your employer.