The one thing in common about the mega-rich is that they are obsessed with money and/or success. Warren's family members often complained he didn't spend enough time with the family because he was in his den sifting accounting and finance material. Warren is in love with numbers.

The thing is the obsession trait doesn't necessarily scale. If you cloned a billion Gates', that would NOT give us a billion Microsofts. It's not a zero sum game, but pretty close to one. There's only so much room in any given niche.

Another thing, I've been using and following Microsoft for about 3 decades. They didn't do anything special or innovative in my opinion, at least not relative to their size. MS just did smart marketing, acquisitions, pricing, and packaging. MS mostly leveraged monopoly in one category to gain another category: not raw merit. If MS never existed, the world would be the same or even better off: more OS and office-software choice. I have a bit more respect for Steve Jobs: he spotted useful product configurations before any one else (with means). MS just copied/purchased trends after it was obvious they were catching on.