In fact, literature is intimately connected with the exercise of power. Throughout history, literature has generally been the province of people insecurely seated within the political elite. Literature, with a few famous exceptions (the work of Marcus Aurelius and Queen Liliʻuokalani, among a few others) is not written by actual rulers. Nor is it written by the landed elite. It’s usually written within societies that have grown large and complex enough that they need a body of learned administrators — people who depend for their livelihood on service to the state, in whatever form it might exist. And literature arises almost as an accidental byproduct of the creation of this class.
If there can be any defense made of literature, it’s that the ruling class usually doesn’t find it particularly useful, other than as an example of how to write good prose.