certain features in another human being trigger ascriptions of worth. These features include signs of composure, cleanliness, maturity, attractiveness, and control of the body. The perception of dignity in turn elicits a response in the perceiver. Just as the smell of baking bread triggers a desire to eat it, and the sight of a baby's face triggers a desire to protect it, the appearance of dignity triggers a desire to esteem and respect the dignified person.
This explains why dignity is morally significant: We should not ignore a phenomenon that causes one person to respect the rights and interests of another. But it also explains why dignity is relative, fungible, and often harmful. Dignity is skin-deep: it's the sizzle, not the steak; the cover, not the book. What ultimately matters is respect for the person, not the perceptual signals that typically trigger it. Indeed, the gap between perception and reality makes us vulnerable to dignity illusions. We may be impressed by signs of dignity without underlying merit, as in the tin-pot dictator, and fail to recognize merit in a person who has been stripped of the signs of dignity, such as a pauper or refugee.