The story starts out with how those with an earthly hope - JWs, not "worldly folks" - have the "very important" role of supporting Christ's brothers.
It goes without saying that the rest of the world have no role in the first place. They could care less.
Then he goes on to the story about being dissed in a "branch territory." Again he could have said he was poorly treated in "another country" but specifically used the term "branch."
It really wouldn't make sense if it were just "worldlies" who are pissing him off - that's to be expected; and they're all burnt hot dogs via Big Brother Jesus' firebolts anyway.
I see what you're saying, BOC, but he goes on to tell a story about 'men' (read: the 'goat-like') who dissed him. We all know what happens to the 'goats' in the illustration, and these are the ones mistreating Christ's brothers.
Yes he could have said 'another country' but perhaps 'branch territory' was more precise - rather than some far flung corner of a country, it was the territory around the branch. If he meant JWs in the branch were mistreating him, he'd say 'I wasn't treated too well in this particular branch.' It is also of interest that he alone was mistreated - not he and his fellow JWs, not the GB or 'anointed class' as a whole, just him. Perhaps he was attending a branch dedication or something.
If the JW brothers were mistreating him, they would have been jumped on from a great height. If they were kicked out of the Org so that they were now termed 'men,' would AMIII encourage praying for them? (e.g. 2 Pet. 2:9-13) One can pray for non-JW persecutors or the non-JW 'goat-like,' but for JWs booted for disrespecting a GB member? I dunno ... I don't think so.