I do know one friend of mine who is extremely successful in business. He's lucky to sign his name - completely dyslexic, uneducated and need a rubber stamp. Travels well, lovely family and has a good life. From only a financial view, IMO, those who are extremely intelligent, well educated, linguistic, Harvard, would-be Rhode Scholar types have as much chance to make a buck as any other.
The CEO of the multi-national is nearly always uneducated; their Vice Presidents are the ones with the Oxford scholarhips etc.
