You forgot important part, and that is that banks hold a very special position in society. The system of money as you described only works because of state pow

You forgot important part, and that is that banks hold a very special position in society. The system of money as you described only works because of state power. It is a system that makes sure people work for the creditors. If you want to know why bankers (the creditors) who caused hardship to the whole population of the world from the last economic crash, didn't go to jail, this is why. It is a massive system but a fragile one. This is also why market economies cannot exist outside a strong state. In fact, as described in Debt the first 5000 years, market economies were inventions to the problem of how to feed and maintain large armies in empires.