This is the same argument that I levy at professional "effective altruists"--if you're profiting by and not subsidizing altuism (i.e. comparable net worth to those you're helping), you're by definition not an altruist, you're a symbiont at best and a parasite at worst.
RMS is an impotent (and some would say toxic) emissary for open software and hardware, but at least his principles directly align with his lifestyle. No one is being ferried into nascent manipulative technologies because of their supposedly "revolutionary" potential on his account.