Only in a perfectly spherical economic market. In an efficient market rewards are a function of risk. Lots of founders talk about their secret sauce: information they knew that other competitors did not. Information is not equally known, and economic rents exist, so there are areas where bigger returns are available for less risk. And there are definitely lots of examples where high risks do not have expected high returns!
I've come across this a couple of times but in 15 years and 200+ companies not often enough to see it as the big differentiator for success or something that negates the usual risk/reward trade off.