Fiction can’t be subversive. If the reader feels threatened, then he’ll stop reading. The reader will only continue reading if he is being entertained. Subversion in any art form is impossible. Even nonfiction can’t be subversive. It may be used to serve some person or group’s preconceived purposes, usually to gain power, but its ideas will be recast and deliberately skewed. Freud, Marx, and all religious doctrines are obvious examples of this.