In fact it's not a question of being in the game or out of the game, just a question of time preference. The sole purpose of accumulating money is to eventually spend it. Maybe it will be spent tomorrow, maybe by future generations, but it will eventually contribute to the economy and allocation of resources on whatever schedule and for whatever purpose the owners of the money deem best given their unique situations. The argument in support of inflation is that it's somehow preferable, in the vast general case, for people to spend their money sooner rather than later, and worth using force to accomplish this. It's as presumptuous and arrogant as it is arbitrary, an essentially totalitarian position.