Fables are fictional works designed with an intention of changing social behavior. And you also have fictional books with political/social agendas like 1984, A

Fables are fictional works designed with an intention of changing social behavior. And you also have fictional books with political/social agendas like 1984, Animal Farm, Lord of the Flies, Brave New World, Atlas Shrugged, etc. that are often quoted during real-world debates. So literature has at least permeated the consciousness enough to be considered a reliable argument for some thinkers.