Les Mis is not funny

I think Victor Hugo doesn't involve humor in the story because he takes the situation serious. What i mean by that is he has most likely has seen it when he goes around. So when he sees those types of stuff he feels deep for it. What i mean by that is he takes it to the heart when he sees stuff like that. Victor Hugo knows its a real problem and is just talking about it and is just trying to get more awareness on it.