The setting for this chapter is Chiapas, Mexico's poorest state. Chiapas has a complex history of which chronic oppression and recurrent dispossession of indigenous people, as well as social movements, play an important role. This history, along with subsequent social, political, and economic structures, has facilitated the current impoverishment of 77% of the population, as well as the lack of access to mental health care. In this chapter, we illustrate the way that this "structural violence" drives the cases of three individuals living with mental illness in the Sierra and Frailesca regions of Chiapas, through a social medicine lens. In addition, we describe an innovative community-based care-delivery platform that has been successful in providing mental health care to these three individuals and a thousand others in rural and highly marginalized communities. Leveraging existent infrastructure and human resources, and with social medicine at its core, Compañeros En Salud has forged an academic and professional support network for community health workers and young, inexperienced, general practitioners to provide mental health care at the first level, while strengthening the links between first, secondary, and tertiary levels of care.