The man in red polo shirt is a teacher, apparently. The melee was allowed to fester precisely because the man in red shirt couldn't control the golden monkey. He was putting his arm around the golden monkey like some ITE buddy-buddy but wasn't able to assert his authority as a teacher.
I understand nowadays in poly the teachers need to be appraised by the students, so the man in red shirt was afraid that the golden monkey might give him a negative appraisal and affect his promotion.