For the liberal philistine, there is some profit to be had in his indifference to art; for thereby he can seem open-minded and even magnanimous, of which he is then keen to boast. Consider the following, for instance:
I have always thought it to be a badge of liberal right-headedness to find it impossible to be offended by a work of art. 
Naturally one is never offended by those things to which one is indifferent, and if one cares nothing for art, but everything for the arrogation of magnanimity, then one can tolerate all depths of degeneracy—a badge therefore not of liberal right-headedness or generosity but of liberal indifference, fixed to a self-congratulatory and contented philistinism that is willing to sacrifice all things to the idol of tolerance.
.....There is no clearer sign of liberal philistinism than in its conception of art as little but a totem of tolerance—especially for those things by which it is hoped the sensibilities or convictions of its enemies are offended, as our rag-scribbler reveals:
[C]ontroversial art has a worth quite besides its quiddity. First, if it offends the bourgeois sensibility . . . Second, if it offends the bolder, more Nazi sensibility that any risqué subject matter will have a degenerate effect on its viewer. 
In the first, we glimpse a little of the infamy of liberal pretension and ingratitude; for liberalism was born of bourgeois sensibility, and is still maintained on its account. In the second, we glimpse a little of the liberal conceit by which a semblance of moral justification for its own indifference to decadence is sought in the defamation of its enemies. Alongside all this, however, is the sight of liberal hubris in the strange boast of being impervious to offence. For sure, the liberal-as-philistine may not care much for art, and can stand any degree of degeneration therein, but should you stand against his idol—in art or in life—you will learn that there is no-one on this earth who is quicker to take offence.
 Zoe Williams, “Enraged by the apples”, The Guardian, 11th October 2006.