If we want social justice, changing laws and attitudes is not enough; we have to change the cultural “toolkits” that make injustice feel normal and deserved. Drawing on Sally Haslanger’s account of ideology as culture gone wrong, this blog argues that social movements are essential culture‑makers: they surface hidden harms, create new meanings and identities, and offer alternative practices that can reconfigure what counts as possible and valuable. For organisations serious about transformation, the question is not just “What policies do we need?” but “What cultural tools are we reinforcing—and which new ones are we helping to build?”