Should access to fundamental rights be regulated? This is the question that competition practices pose to social work. Analysis of work with and for others shows that inclusion is not a competition. The exercise of solidarity need fraternity. Social transformation is not a market. The capacity to act that we want to develop for beneficiaries implies practices of sustainable development, not competition.It is for this reasons that this paper refutes competition as a mode of regulation of social and medico-social supply, for ethical reasons based on the legal definition of social work.The consequences of this competition of social establishments and services limits the social diversity of actors and undermines the principles of solidarity that require us to work together.