After the Cold War, most of the distinctions among people weren't political, economic, or ideological, they were cultural. This means we divide ourselves by ancestry, religion, language, history, values, customs, and institutions. Rather than how much money we make or if we live in poverty. There aren't really ranks. We identify ourselves with cultural groups: tribes, ethnic groups, religious communities, nations, and, at the broadest level, civilizations. As Samuel Huntington said, “We know who we are only when we know who we are not and often only when we know whom we are against.”
As said earlier, everything culturally changes. The philosophical assumptions, underlying values, social relations, customs, and overall outlooks on life differ significantly among civilizations. The revitalization of religion throughout much of the world is reinforcing these cultural differences. Cultures can change, and the nature of their impact on politics and economics can vary from one period to another. Yet the major differences in political and economic development among civilizations are clearly rooted in their different cultures.
Huntington, S. P. (1996). The clash of civilizations and the remaking of world order. New York: Simon & Schuster.