This article proposes to see how a certain form of production and diffusion of knowledge contributes to citizen mobilization and to the transformation of living conditions making it possible to reduce the social inequalities of health. It points out the importance of adopting and sharing an ethic of the recognition of inequalities, at the level of organic solidarity spaces of expression that are the local communities. It shows how, in particular, a collective appropriation of knowledge makes it possible to push the vector of development in the direction of the activation of the capacity to act while supporting the rise of countervailing powers able to influence national public policies, while ensuring that the individuals and the communities themselves have the quantum of resources that belongs to them, but especially the resources which are appropriate for their needs and the possibility of making choices for a better living.