Jiang Chen looked on in astonishment, not expecting that after so many years, this monkey had become adept at arguing his case.
However,
Who said he had no right to interfere?
As a Demon Suppression Heavenly God of Heaven's Court, seeing a heavenly official break Heavenly Rules, how could he just sit back and ignore it? If word of this reached the Jade Emperor's ears, he might well be accused of dereliction of duty.
If he saw something but didn't expose it, he could turn a blind eye.
But having witnessed and even intervened in the act, if he didn't address it, that would be dereliction of duty at best, and collusion at worst.
Therefore, when Jiang Chen got involved in this matter, he had no choice but to intervene.
Otherwise, when the Jade Emperor's punishment came down, it wouldn't just be Sun Wukong who would bear the brunt, but him as well.
Jiang Chen certainly did not want to get hit before his elevation, and also leave a bad record.
