There are literary works that are extremely violent and that leads us to reflect.
However, I have read texts that describe violence and wallow in violence without leading us to any reflection.
What is the purpose of these texts?
I live in a country where there is violence every day. There are writers who describe the brutality of my country in order to leave a testimony of what happens here. They do not necessarily mutilate or rape in their texts.
Good literature is more effective if you know how to use it.