Why did you decide that paper money is created from the air? The essence of money is to resolve the contradictions between value and consumer value.They have a universal equivalent. This equivalent is the ability of Fiat money to be exchanged for any product or service.Fiat is also a commodity. They lay the work of the people who produce it..And like every product it has its cost.It is the cost of electricity equipment materials for the production of Fiat money. If you think that paper money is created from the air then this is a profound misconception!