oai:ojs.fundacionmenteclara.org.ar:article/149Different theoretical approaches throughout history have tried to explain why societies establish ideologies that think intergroup relationships as unequal and hierarchical, and why it is accepted by individuals. Among the perspectives that deepened these philosophies of inequality are: functionalism and Marxism. Both visions are incomplete and focus on top-down models (thinking about the dynamics of society from top to bottom). At the same time different psychological theories, such as the theory of social identity, ideological cultural theory, the theory of system justification and the theory of realistic conflict, began to investigate the psychological factor in adherence to an ideology, turn...