System justification theory posits that individuals have a psychological need to defend and justify the status quo, even when it may be disadvantageous to themselves or their group. This inclination stems from an underlying desire for order, stability, and a positive self-image. Consequently, people may develop beliefs that legitimize the existing social, economic, and political structures, perpetuating inequality and out-group favoritism.
For instance, many lower-income individuals may support policies that benefit wealthier classes, believing that the current system is fair and just, often due to a psychological need to maintain a positive view of the societal norms they are part of.
To counteract system justification bias, individuals can critically examine their beliefs about the status quo and actively seek out information that challenges their views, promoting a greater understanding of social inequalities and alternative perspectives.