What made the monster a monster was this idea that he could just order up the new girlfriend from the doctor. Victor was crap at making creatures, so why was he having him raise up a brand new being to experience life in misery too? I understand that the people around him kept looking down on the monster. Well join the club, that's what people in Europe do. (I've been there you can't tell me otherwise.) The thing that made him a monster wasn't that he killed that little kid without remorse. It was that he blamed it on the way he looked. Well you don't get off that easily. Okay, I recognize that this was back before they invented therapy. He also didn't have the advantage of going to a nice school or any school at all. But if he was able to teach himself German or whatever, then he should know that there are kinds of things that he shouldn't be doing. Just because you're an artificial being doesn't mean you don't have to have a moral code. In fact his genesis should entitle him to bits of twenty or thirty people's moral codes to start with.
Everybody says that his agony made him commit crimes and I'm not saying they're wrong. I'm sure somebody would have ponied up for him to get a attorney of some sort. Fancy lawyers are called upon to represent ugly people. All the time.