Those days never existed. I'm from a generation where many that now would be considered "on the spectrum" were diagnosed with personality disorders. (Narcissistic being one of them btw, a diagnosis, not just a common adjective, and the most fashionable being "borderline".)

With exactly the same broad spectrum of opinions, with or without clinical frame of reference. When it comes to psychiatry, science appears to be as sensitive to fashion as society in general.