The "we'd like you to contribute to our code base, but we want to be the only people making money from it" position of a lot of Open Source companies is untenable. And you can easily see how the original "anyone can make money off this code" position would get warped over time and board meetings to "these parasites are stealing our revenue".
I think it reflects the other side of the problem, the way that maintainers of open source packages get abused and taken advantage of. We need to work out some way of funding and rewarding software development that allows it to be freely used and also adequately compensated. This is not easy.