From an extensive (~9,500-word) Elon Musk profile
"Musk’s odd behavior isn’t unique or even extreme in the annals of inventors. Howard Hughes lived like a hermit in hotels, watching movies in the nude and refusing to cut his fingernails. Nikola Tesla, who pioneered alternating current electricity delivery—and who is honored in the name of Musk’s company—died destitute, convinced he had invented a motor that could run on “cosmic rays” and obsessed with caring for sick pigeons. (He is reputed to have said of one, “I loved that pigeon as a man loves a woman, and she loved me.”)Dr. Elon & Mr. Musk: Life Inside Tesla's Production Hell | Wired
There’s a sense of tragedy in such stories because these men seemed, at one point, to rise above the masses and suggest that genius is possible. Silicon Valley in particular reveres these kind of heroes—and the more willful and ornery they are, the better. Technologists are often called upon to do things that seem impossible, and so they celebrate when doubters are proven wrong—when dismissal of an idea becomes evidence of its visionary reach. The idea of the odd genius is afforded a special status within technology. People lionize inventors who listen to their intuition and ignore naysayers, who hold themselves and everyone else to a standard of perfection, regardless of what it costs those around them. Steve Jobs is gone; now we have Elon Musk."