But you don't give people food, you just give them "food stamps" (call it money or anything else).
Lets say we have 200 bananas and want it to sell it to 400 monkeys. (we're not much more than that)
It does not matter if monkeys have 1, 2 or thousands "pebbles" to buy bananas, there are still 200 bananas to be shared between 400 monkeys.