The more general issue, of course, is the basic unreliability of not being constantly sensitive to what actually happens in the world, no matter how excellent the institutions are taken to be. Even though John Rawls is quite clear in motivating the discussion on institutions in terms of the social structure they promote, nevertheless, through defining his 'principles of justice' entirely in institutional terms, Rawls too goes some distance towards a purely institutional view of justice. So do a number of other leading theorists of justice through their ultimate reliance on the soundness of the institutions they recommend on the basis of how they are expected to operate.