Because he acknowledges his mistakes and repents of his failures
Explanation:
Although John Proctor's morality is questionable because of his adulterous and disrespectful behavior, in the course of the book he shows traces of morality when he feels guilty for everything he has done and seeks to repair the damage he has caused as a way of being redeemed from his sins.
As he acknowledges and seeks forgiveness for his failures he can be considered a moral and ethical person.
Comic relief Other persons in a piece utilize this literary term as a means to irritate others or keep themselves confident.It generally attempts in delivering emotional or other stress arises from a comic episode arbitrated in the midst of serious or tragic elements in a drama.