The film operates within a traditional heteronormative framework. It focuses on single motherhood and interpersonal relationships without including non-cisnormative identities or narratives that critique heteronormativity.

Erin Brockovich subverts gender hierarchies by navigating a male-dominated legal field with high agency. The story rejects the submissive female trope, centering a twice-divorced mother as the primary driver of justice.

The central narrative and cast focus primarily on a white, working-class demographic. While addressing environmental injustice, the film lacks broad ethnic plurality within the core investigative team and victims.

The film offers a critique of capitalist structures and corporate corruption. It portrays a nuanced, non-idealized version of the family unit, highlighting the chaotic realities of socioeconomic struggle.

Physical illnesses serve as the plot's catalyst and evidence of malpractice. However, the film focuses on systemic causes rather than exploring the lived experiences of neurodivergence or specific disabilities.