Bill Gates is another person with extremely limited technical achievements who happened to be in the right place at the right time, with the right connections.
Gates was a real programmer. He wrote a number of early BASIC interpreters for early PCs in assembler, which was not easy and not a thing many could do. His story has a good bit of luck as a factor but so does anyone's.
See book The New Magicians about early MS days. Le Nouveaux Magiciens in French original version, IIRC.
Gates proved new bounds for Pancake sorting as a freshman @ Harvard. He famously published with Papadimitrou. Gates is a better computer scientist than 90% of your rockstars at Google.
Strange how someone can make the right decision in the right place at the right time over and over and over...