Where Are All the Open Source Billionaires? The lack of open source software billionaires is by design. It’s part of the intent of open source software — to balance the scales by devaluing the obscene profit margins that exist in the commercial software business. . . . There are real millionaires– even billionaires– who built companies on open source software. Just ask Larry Page and Sergey Brin. Or the YouTube founders. The real money isn’t in the software. It’s in the service you build with that software.