Authors:

To sacrifice the principles of manners, which require compassion and respect, and bat people over the head with their ignorance of etiquette rules they cannot be expected to know is both bad manners and poor etiquette. That social climbers and twits have misused etiquette throughout history should not be used as an argument for doing away with it.

Judith Martin (1996). “Miss Manners Rescues Civilization: From Sexual Harassment, Frivolous Lawsuits, Dissing, and Other Lapses in Civility”, Crown
To sacrifice the principles of manners, which require compassion and respect, and bat people over the head with their ignorance of etiquette rules they cannot be expected to know is both bad manners and poor etiquette.