I learned that members of the GB fly all over to give talks in distant congregations etc. They collect the air miles.
Then on their vacation, they fly wherever they want using the air miles.
Another thing I learned from some decades ago. At a court case in Quebec, one that involved Covington and Glen How as lawyers, Canadian branch servant, some others and Anton Koerber. I ran errands for them to the outside when required. They were staying in a luxurious suite at the best hotel in Quebec City. The branch servant, Percy Chapman, made a point of telling me , that Anton Koerber was paying for all this.
Now if any old timers remember who Anton Koerber was, he was a millionaire (?) who made his money in real estate. He handled big real estate deals for the Society and probably collected a big fee for it.
I have always wondered if kickbacks came back to the the powers that be. All for the Kingdom, of course.
belbab