This incessant need to create and proliferate suffering

So i've been reading mysterious stranger by Mark Twain after i recently picked it up (really good book but im genuinely only like on chapter 6 so pls no spoiling) but i really enjoy this book so far and the story behind it. So as far as i understand it twain was dying and he wrote these manuscripts prior to his death and then he died and his assistant like compiled them together and said he had a full novel from twain that was his last and tried to sell that im guessing. And i think that ties really well to the message of the book imo. Like the whole book talks about how humans create these systems and beliefs that harm and profit off of others. We see this through the slaves and their comparison to the prisoners who are living better than the innocent slaves that have done nothing wrong but will slave their whole life and die. We even see this through how the village proliferates their own suffering through these witch-hunts that isn't actually real and is all a hoax to just murder hundreds of people through this fear of the witch. Twain writes Satan as this figure of like juxtaposition between Bliss and Carefreeness and like Benevolence and violent and in many of his scenes he's described as this like sweet talker but committing terrible actions and i think that really serves as this mirror or figure head for all of humanity. We proliferate this suffering and continue this cycle of evil for our own self interest and it's a really interesting take on human condition and like nihilism. imo this book has quickly become my fav of the twain books, you can really feel even like almost a hundred years later how angry and sad this man is at humanity on his like literal deathbed . many times he is like chastising humanity and their deeds through these characters and it feels like twain was really hammering in on this push for change of the human "moral sense".