Blurring the line between the real and unreal, magic does this without any sociological or physical penalty. When the lines blur between the real and unreal, people get committed to hospitals and take a regimen of drugs. People jump off bridges in an attempt to fly, only to meet their death. Lose control of this ability to judge and you are in big trouble. While losing this ability is rare and terrifying, magic does this on a daily basis, all in a safe environment. Magicians trick human nature all the time, and have been doing so since humans walked the earth. How much more interesting can this get?