From the Theory Camp discussion of Charles Taylor's A Secular Age.
A great achievement of modern civilization is that the social elite do not spend their time making war on one another. Instead, they make business on one another.
Charles Taylor says that one of the great achievements of our modern moral order is creating "the economy" as an autonomous sphere, which has become the central arena of action for our ruling class. This is the last step in the long social process of taming the feudal nobility.
The nobles were independent military actors through the wars of religion. The revulsion against those wars created the idea of religious toleration and moved religion out of the state and into the new "civil sphere." A side effect was to reign in the nobility to royal power, and to expand the elite to include the non-military gentry. The warrior elite and the gentry elite were both domesticated as educated, civil, advisors and agents of royal power. The English elite broadened to include economic functions, both through the state and through their own business. The English pattern became a model for other national elites.
America, which was born without a warrior caste, or even with nobles, so takes for granted that the ruling class is a business class that this seems like common sense. It is good, therefore, to step back and celebrate the civilizing of the warrior class.