I used to almost exclusively pirate because I couldn't afford much of anything. Steam has actually enabled me to purchase most of the games I use since I can wait till they're on special and cheap. There's also a huge amount of indie games that would never have seen the light of day if they could only release on physical media or through their own website or whatever.
no Steam isn't perfect, I would like Valve to take less of a cut but in terms of making games more accessible, I think they've done a decent job.
No shade on my fellow pirates who still exclusively pirate and don't want to feed the corporate beast.