I think you're saying roughly this: work is the process of turning time into money, and the open source community saves everyone's time, so less money could be

I think you're saying roughly this: work is the process of turning time into money, and the open source community saves everyone's time, so less money could be made. However, I think you might be missing the fact that the time saved from not reinventing the wheel countless times could be used to build better things. In fact, this happens a lot. Numerous companies and careers have been built by virtue of open source tools.