In my introductory economics class I explain that markets are amoral – not moral, not immoral ... amoral. In that sense they are like computers ... incredibly powerful at processing immense amounts of information in useful ways, but totally agnostic as to the use. Computers can be used to educate, to elucidate, to heal ... or to develop weapons of mass destruction. They don’t give a damn, nor do markets ... nor does homo economicus.
(that's the full quote, the "... " parts are in the original. I have enlarged the money part)