https://www.sitebuilderreport.com/origin-stories/elon-musk is an essential read about Musk's first company Zip2, whose $307 million payday in 1999 set off his ability to be one of the first funders (and only retroactively a founder) of X.com which would become Paypal.
His work at Zip2 was incredibly consistent with his pattern: a person with visionary ideas, an effective prototyper, an incredible ability to sell with smoke and mirrors... but only successful in business to the extent his companies are protected from him:
> ...in early 1996 the firm Mohr Davidow Ventures invested $3 million into the company, on the condition that Musk hand over most of his shares and cede operational control to a seasoned tech executive named Rich Sorkin. Musk was demoted to Chief Technology Officer, and not surprisingly, he hated to see someone else run his own business. But he needed the money to take Zip2 to the next level, so he took the deal.
> The new programmers found that they needed to rewrite most of the software, to make it more efficient. Musk’s DIY approach to coding didn’t include chunking, so he inadvertently created a “hairball”: a tangled mess of code that’s nearly impossible to unravel if anything goes wrong.
> Often he would re-write his programmers’ code after they left work at the end of the day, without telling them of the changes. He was also prone to micro-managing and rudely criticizing his team. Needless to say, they found him difficult to work with.
But Zip2 became vital to the online transition for traditional newspapers and other media. Right place, right time, Musk being actively managed from the very beginning. But he's incapable of recognizing now that he needs that support system.