As long as there is somebody impatient and willing to pay more money for an edge in strength over someone else that inflation is then inevitable. The only way to stop inflation is make it impossible to buy that edge so that you have to earn that advantage by spending time playing the game - which is not much good for Plarium's pockets .... (unless they sell advertising space?).
The art of playing this game is to get better, not bigger (there is always going to be someone else that is bigger, and bigger players always need bigger opponents for the rewards that they need to get to continue getting bigger).