Market forces have no intrinsically moral direction, which is why, before he wrote The Wealth of Nations, Adam Smith wrote The Theory of Moral Sentiments. Ethics should precede economics. But it doesn't have to. . . . We know this because we've seen the results of capitalism without conscience: the pollution of the air we breathe, the water we drink, and the food we eat; the endangerment of workers; and the sale of dangerous products - from cars to toys to drugs. All in pursuit of ever-greater profits.