About 1970, an enlightenment came along called the Feminist Movement.
Feminism decreed that women did not owe it to men to put up with their crap, even if they were "hungry dogs" the way you describe Elvis. If women leave these "hungry dog" husbands and then the men died from their own self-abuse, our society does not call the wives, "murderers." They call them women who decided masochism would no longer be their life's work.
I'm a little thrown by your detailed interpretation of the Elvis and Priscilla thing. Please consider you may be hallucinating.