Bill Gates is Machiavellian manipulator in a nerd suit. Yes, he may have had a role in the BASIC programming language. Everything after that was about market manipulation.
He bought DOS so that he could form a deal with IBM. He stole Windows. Windows wasn't even the best GUI.
His entire life is about gaining a monopoly in a deal with IBM and using that monopoly to gain monopolistic control in other areas.
Gates really hurt the nerd community. After all a true nerd is driven by a fascination with technology and not a love for power.