Tonus OH makes an interesting point - If everyone took the JW approach, the world would devolve into relatively small and isolated groups, and the population would decrease significantly. There's just no reason to try and keep things running on even a national level, and there's no reason to keep doing important scientific and medical research-- Jehovah will take care of that so soon that it would be a waste of time.
This can be summed up in one word - Inshallah Arabic-language expression meaning 'if God wills'
Hence Islamic society is so broken and backward.
RB