Number 6 speaks of Jack Barr in his o/p.....I met him once, went "on the work" with him just before he was called to the GB. The Scot was then at the London Bethel.
Funny thing was that was a most humble and unassuming man , totally unlike the image we have of A Morris 3rd or Steve Left. He was 'old school" .I don't think he would fit the Televangelist GB of today.
Regarding Hero worship, I recall once in around 1960 Bro Knorr was to be a speaker at a convention in the North . My older sister and her friends travelled up to attend, because HE was there. I remember my non witness dad grumbling about "hero worship".