Universities are under increasing pressure to demonstrate the economic and social relevance of the research they produce. In the UK, for example, recent developments in the UK under the Research Excellence Framework (REF) suggest that future funding schemes will grant “significant additional recognition…where researchers build on excellent research to deliver demonstrable benefits to the economy, society, public policy, culture and quality of life” (HEFCE 2009 ). Having conceded that this and similar developments are likely to continue into the future, this (...) paper explores the problematic ethical terrain facing philosophers of education under increasing pressure to produce work that has unambiguous, demonstrable practical value on terms offered by various funding regimes. A preliminary ethics of relevance is developed through an examination of the debate between John Rawls and Jurgen Habermas on the relationship between philosophy, public policy and public reason. The paper then articulates and defends a principle of legitimate relevance . This principle is then applied to the case of directing disciplinary competence in philosophy of education for the educational policy process as a means to producing social and economic benefits. (shrink)