From segregated drinking fountains, slavery, the Inquisition, the holocaust, laws against interracial marriage, to sacrificing virgins at the alter – humans have perpetuated some pretty horrific, cruel, and unconscionable things.
Self-respect plays a vital role in personal integrity. When you respect yourself, you create the type of self-image where you see yourself as someone who upholds certain values. And having values is what makes you valuable to the other people and inhabitants of the planet.