Thinking that the invisible hand of the market eliminates the need for ethical conduct in business is like thinking that the competitive structure of sport eliminates the need for good sportsmanship. The market is not a free-for-all, any more than a competitive team sport is. Making a profit is the goal of business in the same way that winning is the goal of competitive sport. But the point is not to achieve this goal by any means possible; it is to achieve it in a fair and honest way.
Joseph Heath (2007). An Adversarial Ethic for Business: or, When Sun-Tzu Met the Stakeholder, p 369