No legitimate reason to argue against hacking?

I realise that this may seem trivial to someone who doesn't play these games, but the very fact that they are spawning a 'realistic' economy means that many people who choose to play the game without cheating are having their experience significatly affected by those who use teleportation hacks and bot camping to get rare and expensive items, whose value is then greatly decreased on the market, reducing the income of those who play legitimately.

Surely the enjoyment of the game is a valid reason to argue against hacking, even if it may not exactly stand up in court.