Not to mention that the actual "scans" here are fake. There is no way to measure dopamine distribution in the brain like that. Also, both pictures are the same but were edited.
Does that mean that if I've never succumbed to sugar addiction despite having access to plenty of sugary foods, I can safely use recreational cocaine without worrying about it destroying my life? I've always avoided it whenever I did have access to it, because I've heard too many horror stories about it destroying people.