I surprised myself a couple of years ago by getting into domestic discipline stories, particularly several series by Susan Thomas.
What I liked was the creation of a world where spanking had its natural place in the order of things even though, in my everyday world, I would find a dominant male hierarchy with subservient women totally repugnant. However, this world was full of contented people, especially the women who were not servile. I know this is part of the artifice of good story telling and I was able to buy into it totally (for the duration of the series)
The enjoyment lay in my moral compass being simplified to a basic notion of fairness where the discipline always balanced the misdemeanour. Of course, as a male sub, I translated this world in my fantasises to a dominant female hierarchy with happily contented men who knew there role in society.
So, as an escape from the complexities of this world, I do need a moral ending. Even better if the whole story is underpinned with morality but, as others have said, as long as it is not contrived or too preachy.
On the other hand, there are days when I like spanking stories to reflect how the world really is - extremely unfair
