It’s possible that the inclusion of Fritz, the hunchback assistant in FRANKENSTEIN (1931), might have something to do with the success of Universal Picture’s DRACULA earlier that year. Victor Frankenstein was not of the aristocracy in the book, but Henry Frankenstein becomes a Baron in the film (well, actually he becomes a Baron in the sequel BRIDE OF FRANKENSTEIN after the death of his father) – just like Dracula was a Count.
Dracula, of course, had a loyal servant named Renfield, so perhaps Universal thought that Frankenstein needed one too. Both characters were played by the same actor, Dwight Frye.
Replying to the original post, I’m not sure that Igor is really such a powerful pop idiom; rather, he’s a familiar cliche. He had resonance for audiences in the early '30s because World War I had left lots of war veterans crippled and deformed (which perhaps also fueled the successful career of Lon Chaney in silent movies). Now the hunchback assistant is just something we expect because we saw it on the late show.
Curiously, when Hammer Films made their Frankenstein movies in the '50s and '60s, they completely reimagined the concept of the assistant, dropping the aspect of physical deformity. The new assitant was the moral conscience, the one able to recognize the apalling aspects of Frankenstein’s work, while the Baron himself remained blind to them.
And DocCathode, Mary Shelly’s novel became a classic, to some extent, because it spawned a classic movie; at least, that has a lot to do with why it is remembered and read today. As for the plot holes you mentioned, they are indeed there, but the novel surmounts those because the underlying themes are rich and engaging. I think perhaps the problem for you is that the action is driven by the metaphor, not by realistic characterization. If Victor accepted his creation and avoided all the tragedy, there would be no story about the perils of hubris, so he behaves in a way that makes Mary Shelly’s point.
Steve Biodrowski
http://www.thescriptanalyst.com