Companies are moved by money, if your tech is popular enough companies will dance to your tune.

I don't disagree, and I guess I'd say that I think that is all part of the larger point. Eg, "getting more people to use (Linux|BSD|Minix|Mach|Whatever)" is part of the larger idea of "social pressure" to convince companies to behave in ways that we find desirable. So the question then is, as far as I can tell, what more can use techies do - leveraging out existing mastery of technology - to promote "(Linux|BSD|Minix|Mach|Whatever)" to people who don't currently understand the importance of these issues?

And I don't mean to claim that "using our tech knowledge" is the only kind of activism that matters. Maybe for some people it's just "donate money to the EFF every month" or whatever. But to me, that's all still part of the same general initiative.