What I find odd is how people question the realism in a fantasy video game. Dragons flying around, makes sense, a society that has low fines for crime, pure madness.
I'd argue that it's completely understandable.
When it comes to crafting a fantasy world, one of the most important aspects is that the world is believable. Only if the world is believable will the audience be willing to suspend their disbelieve and become immersed in that world. When it comes to believability, the only point of reference we have is the real world.
Now, you're probably saying that dragons aren't real, so how can they be made believable? True, they aren't, but people are able to surmise how they would fit into a world. It's all about how the dragon fits into the world, how it interacts, how others respond to it, etc. If all those aspects jive with each other, then the dragons become believable. And people that have a hard time doing it generally don't like fantasy or science fiction. For the most part, in Skyrim, they've done it well.
The same thing applies to systems of law. The difference, here, is that there is a real world counterpart to compare it to. As a result, people can be a bit more critical about this sort of thing. They look at the value of the fine and the value of the money within the game, then they look at the value of a human life. If they don't jive, it becomes difficult to integrate that into the world. It becomes a stumbling block in suspending their disbelief.