You want to talk big?
Okay, let's talk about Big Jobs!
The day After Armageddon, there's going to be more than dead bodies to clean up. I would suppose there would be the job of cleaning up the wreckage from all that equipment piloted by those evil worldly people, such as jetliners, huge shipping vessels, and what not.
I just watched on Nova, the PBS TV show, about the salvaging of The Costa Concordia, the passenger cruise ship that wrecked off the coast of Italy back in January, 2012. The operation was a complex job, involving the engineering and building of a surrounding superstructure, special custom made steel rods, inflation gear, concrete supports, and hundreds of specialized laborers. It took almost a year and a half to raise to a vertical position, and almost another year before they could float it out of the area. And the operation has cost a mere $2 Billion Dollars.
Now, multiply an operation like this by the hundreds, and think on how many of the "brothers" are high end engineers, architects, scientists, and the like.
I was at an assembly last summer, where all that had to be done on the last day was arrange for shuttle buses to get a few hundred to off site parking. It was a Mongolian Cluster F***. We ended up hailing a taxi and sharing with others that were stuck there 2 hours later than planned. Leaving a very large group behind still waiting. If they can't get a simple task done like this, under relatively stable conditions, how the hell are they going to do major restoration? Hand everyone a broom and pail? Judging from what I saw that Sunday evening, everyone who survive Armageddon will die within a week if left to the care of "those in charge."
Oh, wait, Jehovah's Special Magic will make it all work out.