The film presents a non-traditional family structure through Madame Vastra, Jenny Flint, and Strax. This multi-species domestic partnership is depicted with complete normalcy, effectively critiquing rigid Victorian social structures.

Clara Oswald serves as a primary agent of the plot with significant intellectual agency. Madame Vastra also occupies a position of authority, challenging the patriarchal norms of the 19th century.

The narrative uses non-human species like the Silurien as metaphors for otherness. This allows the story to explore marginalized identities and depart from typical Anglo-Saxon historical norms.

The story prioritizes scientific inquiry over religious institutions, framing the Church as a source of superstition. It values individual agency and situational ethics over rigid, institutionalized morality.

There are no prominent depictions of visible or invisible disabilities that serve as central character arcs or plot drivers.