What explains the sky-high valuation of Tesla and brand Elon Musk?

How does one read Elon Musk? The billionaire mocks specially-abled ex-employees, Musk's Tesla cars raise serious safety concerns, some of his business decisions (read: Twitter acquisition) make little sense, and yet Musk's brand value and the valuation of his companies remain sky high. What gives? Listen in to @VikramChandra