Well, that's what happened with computers.
Oh, speaking of computers, Microsoft is the juggernaut today with Bill Gates the richest man in the world at the expense of several people, including the guy who basically invented the personal computer (who doesn't have a fortune), the guy who invented the operating system that would become MS-DOS (who never got a fortune or ever worked for Microsoft), and even IBM, who has virtually no presence in the personal computer market. Companies like Atari, Commodore, Sinclair, etc. all died due to Microsoft's success, and even Apple was almost a casualty in that war if Jobs hadn't taken his company back.
The problem is, when you work for someone else, you work for wages and limit your income. What is even worse, you give someone else your time you could be using to better yourself.