Isn't the claim of saying "I am he" about claiming to be the Messiah/Christ, not "the faithful and discreet slave"?
DJ, for all practical purposes, JC was the Faithful and Discreet Slave during the 3 1/2 years of his ministry. but only one of many competing teachers.
The wt leadership claims that same role. Their "enthroned king of 1914", has done nothing but rule through them.