How theory becomes reified then commodified

Yet theory was always itself ‘grounded’ on a fundamental (and insoluble) dilemma: namely, that the provisional terms in which it does its work inevitably over time get ‘thematised’ (to use Paul de Man’s expression); they get reified (and even commodified, if I may say so), and eventually turn into systems in their own right. 
The self-consuming movement of the theoretical process gets slowed down and arrested, its provisional words turn into names and thence into concepts, the anti-philosophy becomes a philosophy in its own right.