It doesn't. But the alternative, not watching the show, doesn't either. He also never claims that his actions would benefit anybody. (You probably have the moral high ground here, I just don't agree with this argument.)
> Choosing to pirate Game of Thrones is a win/win. I get
> the content I want and I don't enrich cable executives
Both wins are wins for the pirate with no consideration to others. This is a parasite's definition of win/win.