@sjmcc13
You are correct. Money is simply a commodity that both sides want and is seen as valuable. Before, we traded one thing for another. This got too cumbersome when deals got bigger, so we used something that was durable and couldn't be replicated easily as a form of currency to exchange for whatever it was worth.
The more gold you pumped into the economy, the less it was worth and the higher prices are raised. That's called inflation. That's the main reason why we can't just print more money to compensate. That's also why you can't raise the minimum wage so suddenly. The more money you pay the worker, the less workers you have and again, prices go up to compensate. So basically, you're back in the same situation.
That's why Touji's Item Drop is so dangerous. So far, everyone thinks him as a nut since they can't see the Drops. However, smarter people like Meyer are going to wonder why his Item Box has more stuff than they remember him storing.
"Hey Touji, I remember you killing that Gray Wolf and storing it. So why do you have the carcass AND a Gray Wolf pelt already?"
They're also going to ask where he's getting these summoned monsters.