Alas, irreverence has been subsumed by mere grossness, at least in the so-called mass media. What we have now - to quote myself at my most pretentious - is a nimiety of scurrility with a concomitant exiguity of taste.
Conversation should be pleasant without scurrility, witty without affectation, free without indecency, learned without conceitedness, novel without falsehood.
With the latitude of unbounded scurrility, it is easy enough to attain the character of a wit, especially when it is considered how wonderfully pleasant it is to the generality of the public to see the folly of their acquaintance exposed by a third person.