Does "evil" have tangible meaning, if no-one thinks of themselves as evil? Many people believe they and those they know are good people, but few people believe that they and the people they know are evil people. Evil is an accusation we level against others, not an identity we take for ourselves - except, perhaps, in a game.
A peculiar problem with modern democracy is that all too often we let our representatives hoodwink us with tales of who and what is evil, rather than focusing on how to work for what we believe is good. It's far easier to point a finger, than to make something happen; far simpler to start a witch-hunt than to solve social problems. Fighting evil is the modus operandi of a comic book superhero; it should not be the role of a politician.