While your stats are right, the reality is that people aren't interchangeable and life isn't a perfect game to be approached from a statistical standpoint.

For some people, "100% on" environments are the right choice, and entrepreneurial activities are a natural outlet, whether in isolation or with others. For others, traditional careers offering stability and insurance from any threat of rapid change, or even hermit-like isolation may be favorable. Personally I've fluctuated between the former and the latter, and VC has done well by me as an employee. YMMV. Do what excites you.