It encourages individuals to devote their energies and impulses freely to peaceful pursuits, to the satisfaction of others' wants and needs, and to constructive action for the welfare of all. The basis of capitalism is not greed. You don't see misers creating Wal-Marts and Microsofts. Think about it for a moment. Capitalism is truly miraculous.
Capitalism is a moral system if only because it is based on trust.
When we turn on a light, we assume there will be electricity. When we drive into a service station, we assume there will be fuel. When we walk into a restaurant, we assume there will be food. More recently, scholars like former education secretary Bill Bennett and Nobel Prize winning economist Milton Friedman have pointed out that every time you take a dollar out of one person's pocket and put it into another's, you are making a moral decision. The taxes on our income, capital gains, and corporate profits are the price we pay for the privilege of working, the price we pay for being productive, and the price we pay for being innovative and successful.