The problem is that current market prices do not accurately reflect negative externalities such as pollution, exploitation of cheap labor, depletion of natural resources, and exacerbation of socioeconomic inequalities. We just dump our trash somewhere and hope that someone else will deal with it someday.<p>If there&#x27;s a reliable mechanism to make market prices better reflect such externalities, I&#x27;m all for it. But until we&#x27;ve found and implemented such a mechanism on a large scale, a bit of moralizing wouldn&#x27;t hurt.