Kickstarted is a strong word here, but revolutionized is perfectly adequate. If starship works out, he’ll monopolize it.

No, he's not an engineer or a scientist. He paid others to do the work. They did the work.

> "at least three industries"

He bought other companies that were already started. Bought, not founded and not invented technology himself.

Somehow, when it comes to billionaires, "I paid a writer" becomes "I wrote a book".