Why did Han Feizi write fables about small countries?

Han Feizi used fables to disparage Zheng Guo to explain his reasoning. According to a query on the 360 ??Personal Library website, the general idea is: a country is weak but unwilling to lower its profile; a country is weak but not afraid of a strong country; it is rude and humiliates powerful neighbors; a country is greedy, willful and not good at diplomacy. May perish.