except, when you start looking into cash//fiat money (as opposed to promissory notes), it is anonymous and inherently dis-honest. What would be honest is a system where the "wealth" associated with an action could be traced. You could tell when wealth from a prostitution transaction, collected by a pimp, was paid to a councilman or official as a bribe. Our current cash system washes that stain and banks do their best to maintain that "privacy", with varying degrees of success.