Because they don't care if it is not them
Answer: Mellow is the best word for it.
Explanation:
The most subtle action is being wired
The pardoner is the last pilgrim to be portrayed in the prologue. His estate belongs to the court of Rome. This gentle pardoner is thought to be worthy of respect; "He had a scholarly look" and "He was an honest person." Nevertheless, his pretension not to care for riches and his being "an unethical man" oppose the positive idea created. The inference that can be made from the excerpt is that he was an unethical man.