It's important to note how mind-blowingly dark and violent this movie was for a somewhat mainstream movie in this era. In fact, the footage here and in most versions of this movie on home video was removed/toned down in the original roadshow and drive-in releases and only restored later.
Not to mention the dark creepy sexuality as the leering mad doctor goes prowling around the stripper bars, shopping for a new new body for his fiance, and the women greedily compete for his attention because he's "classy". As Crow T. Robot said: "Don't forget the strong anti-woman message."
Think I'll post another scene from that part of the movie.