Nothing wrong with using the hacker mentality to carry out a victimless crime. I don't think anyone's going to cry about the NFL losing out on the cost of 1 ticket for a game where so many millions are being flung around.
To back up your point, 2600 and DEF CON have both occasionally touched on the type of tactics and social engineering needed to pull of /hacks/ of this nature.
> "Crime is OK if you think it doesn't hurt anyone."