It has to have an honest size. The game, however, is not hoarding metal but pursuing diverse interests, (hoarding, building, manufacturing, etc) which can’t be carried out if one is occupied all day beating others up to take their gold. How would the security men get paid? Who would feed them? Where’d they get their weapons? Hoarding doesn’t pay for any of that. So the game is breaking a few eggs to make an omelette that is larger each time. That’s how the economy grows and we get specialized and get to charge more for more complex things.