Korah and the faithful and discreet slave go hand in hand. Korah and Sparlock. If you do a search for the word, "Korah" in the WT lib, the WT barely goes a month without showing into a WT or magazine about rebellious Korah and applying it to themselves as being Moses and if you question the authority of the GB, you'll be destroyed.
No wonder JW's parrot Korah everytime anything that questions the authority of the GB comes up.