Digital advertising and entertainment are biased mainly because algorithms and data reflect existing social inequalities and prioritize profit and engagement. This leads to unfair ad targeting, underrepresentation or stereotyping of certain groups, and content that favors dominant cultures, wealthier audiences, and sensational material. Biases in data, demographics, culture, economics, language, and accessibility are often reinforced by feedback loops, limiting diversity, shaping perceptions, and excluding marginalized voices despite ongoing efforts to reduce these effects.