content: It's a smart - nay, brilliant - move for Uber, but an ominous portent for society as a whole if the technique proliferates across many segments of the economy.  Taken to its logical conclusion, it will actually decrease efficacy of the profit motive by causing the value of money to decrease the more one person or entity accumulates.  That decrease in motivation could be disastrous for the economy and society in general.  Hopefully the market will moderate the impact this technology can have.