Virtual coinage

People of promise, and promising enterprises, like promissory notes, have become inseparable from the promises of promotion and advertising itself. Money in turn is a promise to pay promises, and the plausible con man has returned as the stand-in for the traditional gentleman.
Inflation Is Pollution: The Dilution of Promises — Inflation is a tribute levied by those who know on those who don’t. As W. C. Fields saw it, “Never give a sucker an even break.” In a world of promises and con men only the sucker will take valuable time to acquire socially useful skills, such as carpentry or plumbing or “keeping” the books. (Take Today, 79)

Like our money, which is a ‘promise to pay’, our advertising and P.R. only promise to pay promises.  (Foreword to Abortion in Perspective)