Ed Brayton is a great fan of H.L. Mencken, and uses some great quotes by him, such as this one:
"He proves enough, indeed, when he proves by his blasphemy that this or that idol is defectively convincing--that at least one visitor to the shrine is left full of doubts. The fact is enormously significant; it indicates that instinct has somehow risen superior to the shallowness of logic, the refuge of fools. The pedant and the priest have always been the most expert of logicians--and the most diligent disseminators of nonsense and worse. The liberation of the human mind has never been furthered by such learned dunderheads; it has been furthered by gay fellows who heaved dead cats into sanctuaries and then went roistering down the highways of the world, proving to all men that doubt, after all, was safe--that the god in the sanctuary was finite in his power, and hence a fraud. One horse-laugh is worth ten thousand syllogisms. It is not only more effective; it is also vastly more intelligent."
And a long line of comedians have proved it true, from the fools in the courts of royalty to Laugh-In, to Saturday Night Live, to the Daily Show and the Colbert Report.