While upper-class European intellectuals generally looked on commerce with disdain, most Americans -- living in a society with a more fluid class structure -- enthusiastically embraced the idea of moneymaking. They enjoyed the risk and excitement of business enterprise, as well as the higher living standards and potential rewards of power and acclaim that business success brought. As the American economy matured in the 20th century, however, the freewheeling business mogul lost luster as an American ideal. The crucial change came with the emergence of the corporation, which appeared first in the railroad industry and then elsewhere. Business barons were replaced by "technocrats," high-salaried managers who became the heads of corporations. The rise of the corporation triggered, in turn, the rise of an organized labor movement that served as a countervailing force to the power and influence of business. The technological revolution of the 1980s and 1990s brought a new entrepreneurial culture that echoes of the age of tycoons. Bill Gates, the head of Microsoft, built an immense fortune developing and selling computer software. Gates carved out an empire so profitable that by the late 1990s, his company was taken into court and accused of intimidating rivals and creating a monopoly by the U.S. Justice Department's antitrust division. But Gates also established a charitable foundation that quickly became the largest of its kind. Most American business leaders of today do not lead the high-profile life of Gates. They direct the fate of corporations, but they also serve on boards for charities and schools. 27