[jonlawlor]

Musk is a savvy businessman before anything else. He would prefer to not have competition.

[faramarz]

Not true as exemplified by his Tesla company releasing the patents to their technology.

He knows he can't do it alone. He's elevating the bar for everybody.

[john_mac]

By fostering a larger talent pool competition insures a dynamic long term future, lack of it it often leads to creative stagnation. This is the case in natural systems as well.