Tyler Cowen flags this post by Bryan Caplan:

Religious architecture and art were to medieval feudalism what advertising and commercialism are to modern capitalism: A rather effective way to build support for the status quo using aesthetics instead of argument. My claim, in short, is that Notre Dame played the same role during the Middle Ages that fashion magazines play today. Notre Dame was not an argument for feudalism, and Elle is not an argument for capitalism.  But both are powerful ways to make regular people buy into the system.

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