I don't think it would happen because of human nature. Paul is probably the poorest example of the Beatles. He was always a go-getter and studied hard. Unlike the others, he loved school. He was headed for Oxford or Cambridge. He gave it up for the band and rock'n'roll. You are born with your temperament. If you fight it in life, you can't prosper at anything. Part of McCartney makeup is being antiauthoritarian. I was born antiauthoritarian. Mandela, Gandhi.
After reading extensive Beatles bios since the early days, not one of them could be a JW if they tried their hardest. They might have a fling at KH but the brothers would fling them back out into the world. They were all against religion despite religious upbringings and time in youth choirs. George's devotion to Krishna was shocking at the time. He mainstream Hindu belief among English people. They constantly sought out art students and avant-garde elements as teenagers.
The GB's ideal world would be utter chaos. First, there are no provisions for public health. They have no idea of infrastructure. No bridges, highways, pothole repair, traffic safety, urban planning. I don't think the New System could even support a Native American lifestyle. Native Americans had complex political and social allliances. There were trade routes.
Also, I would rather not live in a world with no human rights of any sort. There would be no law, only terror. Imagine a world with no traffic lilghts or 911. I lived in downtown Manhattan on 9/11. My neighborhood was the closest to Ground Zero that was not part of Ground Zero so the police used it as a staging area. I saw the need for government in very concrete ways. The tristate area practiced and practiced for mass disasters. Within less than half an hour, after the first plane hit, NYC designated areas for family and friends and for people fleeing who could not reach home. My local hospital was the closest trauma center. Staff were lined up with stretchers, calmly waiting arrivals-that never showed up. The rest of the city did not panic. All hell did not break lose. People brought supplies down. Millions would have perished that day under a GB authority.
Returning to the Beatles, the GB would trash museums. No Sistine Chapel, no Pieta, no Da Vinci, no Impressionists, goodbye Picasso, Warhol. Music would stop. Imagine being force into museums full of WT illustrations which always remind me of Stalinist art. There has to be a technical term for it. Opera would end. Hip hop-no more. I imagine prisons would grow. Not even Hitler anticipated such global power.
No more fiction. Shakespeare, Chaucer, Tolstoy, Chekov, Dickens-no more. No more New York Times best seller list. No more newspapers. Universities would close. I would have no books about princesses. No more Henry VIII books to read.
Instead of all these autobiographies, someone should expose the Witness world by writing a sci fi account of what a new system world would be like. I would not be around but if I were, my responsibility would be to resort to violence against them. No more history. English itself, the language, would cease. I know some people loved their KH crowd. I hated mine. Death would be the better option. Jesus never performed large scale miracles. There is almost always some proximity in a Jesus miracle. Anyway, Jesus is only an angel. No rescue.