question #3 Sahih al-Bukhari 6781, Book 86, Hadith 10 : What is the significance of not aiding Satan against a fellow Muslim in the context of this teaching?

A drunk was brought to the Prophet (ﷺ) and he ordered him to be beaten (lashed). Some of us beat him
with our hands, and some with their shoes, and some with their garments (twisted in the form of a
lash). When that drunk had left, a man said, “What is wrong with him? May Allah disgrace him!”
Allah’s Messenger (ﷺ) said, “Do not help Satan against your (Muslim) brother.”