There is a video out there somewhere that shows Rutherford drinking from a glass, and it sure looks like he is inebriated. Maybe someone can provide a link to it.
I don't think Rutherford was any more or less a charlatan than Russell, Franz or any of the others, but I do think that he a shocking disregard for his followers. He instituted doctrines and practices that hurt people, and he didn't seem to care. I believe he intentionally provoked a lot of the legal issues in the '30's and into the '40's just so he could get court cases on the books to establish precedents. Likewise, his deliberate provocation of Hitler in the '30s was a terrible action, ultimately causing the death or incarceration of many of the Bible Students.