Then I'm gonna bet that you never worked at Bell Labs.
> I think doing great work in the major problems in your field of choice are the exact heights that entrepreneurialism should strive for.
The time scale is vastly different. Entrepreneurs are not interested in starting programs that will yield results only after 10-20 years, and VCs have an even shorter attention span. Hell, funding events (which require showing progress) every two years are considered successful in the startup culture.