Prejudice and stereotypes against lower socioeconomic status individuals have profound societal repercussions. While research has highlighted negative portrayals, knowledge gaps persist regarding underlying mechanisms and societal impacts. Addressing this, a pre-registered cross-cultural, conjoint experimental study aims to rigorously investigate stereotypes' influence on moral judgments and societal outcomes. Utilizing diverse target profiles, it will examine how stereotypes intersect with moral judgments and socioeconomic dynamics across various behaviors. Assessing attitudes toward redistribution, prosocial behavior, and job prospects, the study offers holistic insights. Importantly, a debiasing intervention will explore strategies to mitigate stereotypes' effects, informing interventions for social justice and equality. This project advances understanding and fosters inclusive societal attitudes.