This isn't any different from sports. People will lie, cheat, steal, and exchange sexual favors in exchange for tickets. They'll endanger their social relationship with their SO in pursuit of 'the game', call in sick to work when they're not, etc., etc. I know of a certain large country with a maple leaf on its flag that frequently has problems after its popular past-time game. People have gone rioting over games - sports by another name.
This isn't a revolutionary new concept simply because it's online... it's passion, pure and simple, and it's been around for as long as mankind has. And it's not limited to games either... people have lied, cheated, and stolen in persuit of money, a better job, fancy cars... virtually anything of value. *shrugs*
Deal with the personality defect of the individual who is committing these crimes to further his habit, regardless of what that habit might be, rather than attacking the habit itself...
Society needs therapy. It's having
trouble accepting itself.