An old article "Has plot driven out other kinds of story?" http://www.theguardian.com/books/2011/jul/14/plot-driven-out-other-kinds-story has asked this question.
As readers we all worry that the biggest money making for book writer is to have their books sold as potential movies. And if the book really turned into movies that did not suck, it would in turn drive sales of their books.
For very literary work, this might not translate as well onto screen. There might not be any plot that drive the story.
For me, it is more difficult to read work that is not plot driven, but that's probably where the skill of writing that turned into art form, for appreciation of the beauty of words joined together instead of having likable central characters and things that happen to them.
In order to support these form of literature, the publishing has to think not only of sales and markets, but on the values of books as a form of art.