Many moral advances have taken the form of a shift in sensibilities that made an action seem more ridiculous than sinful, such as dueling, bullfighting, and jingoistic war. And many effective social critics, such as Swift, Johnson, Voltaire, Twain, Oscar Wilde, Bertrand Russell, Tom Lehrer, and George Carlin have been smart-ass comedians rather than thundering prophets. What in our psychology allows the joke to be mightier than the sword?Humor works by confronting an audience with an incongruity, which may be resolved by switching to another frame of reference. And in that alternative frame of reference, the butt of the joke occupies a lowly or undignified status. ...Humor with a political or moral agenda can stealthily challenge a relational model that is second nature to an audience by forcing them to see that it leads to consequences that the rest of their minds recognize as absur
Steven Pinker, The Better Angels of Our Nature: Why Violence Has Declined
humor, satire