He also exploits people because he's "building the future." He is an evil capitalist with a cult of personality and doesn't deserve the worship he gets.
The problem with Musk is that he's managed to garner a cult of personality for being a perfect representation of an issue that has been plaguing the high tech industry for years. For decades the public has been contributing (through taxes) to the creation of the entire research and development/high tech industry, an industry that wouldn't have been created otherwise since it creates long-term profit at the expense of short-term profit (which isn't expedient to capital), an industry that requires immense collaboration among society, a society which has been contributing its social intelligence since the beginning of society itself, yet what do the people get for all this? Nothing. The public work is looted and privatized, then we are forced to buy back the products we created so a few capitalists can profit. Again, the production is collective yet its product is appropriated privately.