People are often shocked to learn about the prevalence of human sacrifice in Aztec society. We might wonder, how could people go along with such routine public violence conducted by representatives of the state? How did they not protest? Every society develops a set of dominant ideas that frame the existing social order as the way things should be. These ideas form a narrative about the way the world works and the roles of different groups in promoting social harmony and collective prosperity. Typically, a society has many competing ideas about the way the world works, each one reflecting the perspectives and experiences of a particular group. The worldview of a particular group or class in society is called an ideology. Literary theorist Terry Eagleton (1991) describes ideology as an intertwined set of ideas, values, and symbols that can be either conscious or unconscious. When an ideology transcends one group to become the dominant way nearly all people in a society think about social reality, it becomes hegemony. Hegemony is a strategic set of “common sense” ideas that support the social order. As a form of sociopolitical organization, the state requires the vast majority of citizens to lead lives of hard labor and sacrifice in order to support classes of artisans and nobles who live in great cities full of bustling trade, luxurious goods, and monumental architecture. Tearing the heart from a victim on a public altar may seem shocking, but the logic of sacrifice serves as a metaphor for the bodily sacrifice of commoners required to endure lives of hardship to support the well-being of the state. To manage the inequality of classes and ensure the cooperation of all groups, the Aztecs came to embrace the hegemonic notion that sacrifice was necessary to ensure the very existence of the world. The wealth of all state societies, past and present, rests on the hardship of manual laborers at the bottom of the social hierarchy. The dominant ideas of any state are ways of justifying the inequality inherent to all states. These ideas are highly variable. Some societies emphasize religious ideologies of self-sacrifice or the dangers of eternal damnation. Others celebrate economic ideologies of economic growth and consumerism. In American society, for instance, some believe it is necessary to keep the minimum wage of workers very low in order to protect economic growth, an idea not so far removed from notions of bodily sacrifice. In recent decades, the American system has offset these low wages by supplying working-class people with a vast array of cheap consumer goods. The relentless stream of advertising pervading social life continuously reiterates the consumerist mantras of affordability and satisfaction. Ironically, however, those goods are cheap because American manufacturers have relocated their factories to parts of the world where they can pay workers even less than they would pay Americans. The dominant ideology of consumerism draws attention away from the conditions of work and production and toward the ideals of choice and leisure. As both Aztec and American societies demonstrate, the economic and political systems of state societies are deeply entwined, and this relationship is often reflected in the dominant ideas of a society. Political economy is the study of the way political and economic realms frequently reinforce and sometimes contradict one another over time.