The fact many people miss is that almost anyone becomes dangerous if they get too much power.
The thinking pattern of "good people" vs. "evil people" in itself is dangerous. The idea that Elon Musk "become evil" at some point is ridiculous. Really, he is just human, and behaves like most human beings: all those traits, good and bad, advantageous and dangerous, were always present. We cannot modify that by modifying Elon, and we also cannot affect that by replacing Elon with someone else, because it's all in human nature.
What we really need to do is to give enough power to creative people like Elon Musk, and at the very same time, avoid giving them too much power to become dangerous. Averaging out is a great concept, so is distribution of power. Those who think the problem is only that Elon Musk is the wrong guy are dangerous, as they are willing to replace him with someone which feels better to their taste - but still poses the same risks if they gain too much power.