The perfect society is a no money society, the money was created by a black magician to stimulate greed, the transparency in blockchain, i dont know about blockchain but if you know that was created by nsa and banks, maybe they have a back door to spy, or steal cryptocurrency using the Beast ( the biggest computer maybe a Quantic computer ) that attack many bitcoins banks and stole many bitcoins, the Beast that many said that stay in the ECB ( not there) , the Beast could stole many bitcoins in a fraction of second and then privacy information too, is a piece of cake for it.