I don't really agree. A lot open source exists because a developer wanted to work on a project and found it rewarding, though they are paid to work on somethin

I don't really agree. A lot open source exists because a developer wanted to work on a project and found it rewarding, though they are paid to work on something else. The idea is that you contribute effort in one area and get a return value in lots of areas. Some people only take and never give, but overall I'd say most developers gain a huge benefit from OS code.