Why would people take performance enhancing drugs, why would you drink coffee, why would people use AI even when it's banned? It's all about getting ahead in a competitive environment. Games are just as 'real' as the real world to the people who play them. Cheats can be on the continuum of a really fast PC and a quality mouse - taken too far. They are even the kind of thing that happens when two nations are at war - no holds barred. Famous Tour de France riders, I don't think cheated only for the money. It was also for the glory.