I actually believe that much great fiction like LOTR and
Dune and
War and Peace and Solzhenitsyn’s Red Wheel Cycle and Mishima’s Sea of Fertility is inherently educational and inherently makes a political argument, and as
@Darth Robbhi says the brilliance of these works are in the subtleness of the educational value. “Low” fiction which is good is biographical fiction that takes on the characteristic of a history of a particular event or a biography of a particular person, which is a reimagining of historical and human behavioural concepts and conceits which are fixed into new and wild circumstances. The problem comes when low fiction writers try to moralise, that’s when you get unreadable dreck.