“A main agent of that liberation becomes commerce, the expansion of opportunities and materials by which not only to realize existing desires but even to create new ones we did not know we had. The state becomes charged with extending the sphere of commerce, particularly with enlarging the range of trade, production, and mobility. The expansion of markets and the infrastructure necessary for that expansion do not result from 'spontaneous order'; rather, they require an extensive and growing state structure, which at times must extract submission from the system's recalcitrant or unwilling participants.”