There's a big difference in the casual way the term "Narcissist (ic)" is used in popular venues v. the clinical diagnosis. I also see other diagnostic terms used to describe people and situations that don't match the clinical, DSM-5 diagnoses (such as "schizophrenic" "manic-depressive", "depression/depressed". Politicians and actors are often labelled as narcissistic in the media, whether or not the diagnosis fits.