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The present article develops a new perspective on the isolation of people with cognitive disabilities and the violations of human rights that they suffer. Empirical data indicate not only the intermediary role that the caregiver plays between the disabled person and their social environment, but also their contribution to the restriction of freedom. Social exclusion is less due to pejorative social representations than to the threat of normality or what Anthony Giddens calls “ontological security.” The article concludes that “dementia-friendly” devices may have limited effectiveness on preserving freedom with cognitive disabilities. Instead of carving out what is important for the patient after the diagnosis has been received, a justice perspective would need to take place before the diagnosis by asking, for each diagnostic project, who would be supported, and for what purpose it should be established.