This story can definitely be considered a fairy tale. The protagonist is a nondescript old man that is full of virtue. We are instantly on his side because he believes in virtuous, common sense thought--not that poisonous manipulative thought. The old man goes on a journey of sorts to get to where he can impart his knowledge. Obviously, the rulers are inept an cannot listen to sound logic. Logic does not flourish in the aristocracy. The rulers are characterized as demonic and self-serving.
Also, this tale ends with a little "real life" paragraph. The author directly addresses the audience to tie his story to a relevant point in history. Its like a Perrault-ian fable at the end of the tale.