[86GlSqSK]

It is just a medium of exchange, and currently that medium is controlled by people of evil intentions, and has been for a long time back, but I don't think the invention was done by evil people to begin with, it was just an extension of the bartering system to start using gold, silver, copper as a more practical medium, than trying to barter a goat for a pair of shoes. Debasing the coinage was the beginning of a slippery path downwards in moral and ethics...