I submit patches to projects operated by companies all the time, and I generally don't care who runs the project (whether it's a company or a hobbyist). I do this only because it benefits me directly. It probably helps other people too, but they're not my problem. The company making money is also not my problem.

I fix a bug or add a feature, which I was going to do anyway. I get that change merged upstream. I can then happily use my Linux distribution's packages (or some other downstream dependency) without wasting monstrous amounts of time replacing those packages with my own locally maintained version.