Free money has fuck all to do with it. This is about freedom and the perseverance of humanity.
If it makes you feel better, I do pay many hundreds of dollars a year for open source software. All donations.
I'm not saying that to brag or anything, but since we want to start making moral arguments, I think it's likely I'm much less of a freeloader than you. Um, ouch.
Why should others work for free for you?