I think his personal impact is overstated. Maybe I have a bad taste in my mouth from overzealous fanboys, but all I see is a manchild who likes scifi and tech, and threw a bunch of money he didn't work very hard to get in the first place at the right problem at the right time. The reason Tesla and SpaceX succeed is because of every person at the company besides Musk.

Have you forgotten Musk nearly sabotaging their own company with tweets tanking their stocks?