In the prologue, you can see Chaucer's morality through his descriptions of the different classes of the characters. He overexaggerates their traits to show his disdain toward the different classes. For example, he makes the Pardoner into a seemingly great man, even in reality a Pardoner ends up taking the money of trusting devotees of Christ. Another prime example of his overexaggeration to describe his disgust is the Monk. The Monk is supposed to be very humble, but is overly well-fed and wears expensive clothing. Using his sarcasm towards the personality of the characters, he attempts to show the common people how corrupt the Church is and that greed is a sin.