Holmes and Zuckerberg are not even in the same league as Musk. The first is a fraud, the second the sneaky CEO of one of the worst online entities (a perfect example of a fish rotting from the head) the third a visionary that tends to deliver long shots with alarming regularity. If Tesla gets its house in order it will survive and prosper, if it can't get its house in order Musk's personal brand will definitely be damaged, let's hope that SpaceX won't end up suffering from that.