It brings home what one read about what it was like to be a Catholic in Henry V's England - or a Protestant, when his daughter Mary took over.
They didn't wear their sickness on their faces in those days, of course. But it was the same sickness, nonetheless. A belief so fragile it required everyone else share it. Lest the sight of an unbeliever cause one of the Faithful to waver.
The Jabbing is of a piece.
The Jabbed are not content to merely be Jabbed, themselves. Which suggests they doubt, at some level. As they also doubt with regard to the wearing of their Holy Rags. If both served the purpose purported, they would not be so worried about those who do not share their Faith.
They are saved - or are they not? Why doth the Pope - Fauci XVII - wear the Rag? Hath he not received the Jab and - thus - put on the full armor of god? Or is it that he dreads the spread of Unbelief?
What's going on - with regard to both the Holy Rag and the Holy Needle - is the same thing that went on in Jonestown in '78 and in San Diego, back in '97 - when "Do" and his Faithful ate their pudding and "ascended to the level beyond human."