The great scholars of capitalism, from Adam Smith to John Maynard Keynes, understood full well that a functioning economic system depends not on greed, but on moral sentiments and an acceptable social contract between the rich and the rest of society. The rich can make money, of course, but they must not flaunt it or consume it frivolously. Instead, they must invest their wealth for social benefit, whether in business or in philanthropy, or in both as in the case of history's most celebrated capitalist-philanthropists, from Andrew Carnegie and John D. Rockefeller to Bill Gates and Warren Buffett. It is only the dangerously arrogant rich or the servants of the rich who believe that morals don't matter in the great matters of finance

The moral purpose of a man’s life is the achievement of his own happiness. This does not mean that he is indifferent to all men, that human life is of no value to him and that he has no reason to help others in an emergency. But it does mean that he does not subordinate his life to the welfare of others, that he does not sacrifice himself to their needs, that the relief of their suffering is not his primary concern, that any help he gives is an exception, not a rule, an act of generosity, not of moral duty, that it is marginal and incidental—as disasters are marginal and incidental in the course of human existence—and that values, not disasters, are the goal, the first concern and the motive power of his life. The Virtue of Selfishness --- Ayn Rand.