Ah, I understand now, it's a moral objection to contributing that keeps you from wanting to do so - well, here's to our differences, that's what makes us special.
Being as you wouldnt want to contribute to anything that isnt free, you must have a problem with working for a company that wants to make a profit off of software too, I take it?
Being as that I work for such a company, and I like getting paid for my job, I'm glad I dont have a moral objection to writing non-free software.
Regards,
spectre