Since the topic of making money has been brought up, I think the creativity factor of Renzuilli is at question.

I think you can make serious money at anything, as long as you apply creativity to the model. Whether you are Gates, Bloomberg or Sam Zell. Even on a much smaller model, being a plumber and having a franchise like Rotorooter.

So is the plumber that applied his creativity and was task oriented that created a multi-million dollar franchise system, more gifted than the 150 IQ that trudged through a PhD in biology without thinking anything new.

But we don't have a live specimen of the latter. Or a Henry Kissinger who applies his knowledge of the world to become a gun runner with an old Hong Kong family. Now I digress.

I think the topic is too varied to have one answer. It is like economics. Not pure science.