I fail to see the moral problem with being able to write a book that millions or even billions of people can enjoy. To me that's a feature, not a bug.

Work on your reading comprehension. The comment you're replying to specifically said they were not impugning the morality of artists or fund managers.

Making great art is wonderful, but it's certainly not "work" the same way that digging a ditch or answering tech support calls is.