A lot of very successful people are one trick ponies. You see it in the arts a lot where an artist is new and avant garde, only to never change for the next 50 years (if they live that long).
Gates is and always was a one trick pony. It made him incredibly rich, but didn’t make him incredibly smart. There are a lot of those, but their cookie cutter approach works for decades or across markets.
That is truly an original and thoughtful observation. I quite like it.