Any state, no matter how powerful, cannot not rule solely through the use of brute force. There are too few rulers and too many of us for coercion alone to be an effective means of control. The political class must rely on ideology to achieve popular compliance, masking the iron fist in a velvet glove. Violence is always behind every state action, but the most efficient form of expropriation occurs when the public believes it is in their interest to be extorted.