They are not necessarily smart, but they are powerful and most likely sociopathic. They are dangerous.
I feel sorry for anyone who worships people like Musk or Theil. Sure Theil was supposedly a talented chess player in his youth, did well in school etc. But so do millions of other kids. These dudes don't have so much money because they are intelligent, they have so much money because they are willing to do damn near anything to get it - including trampling over people that helped them in the first place