With reguard to the policy of everything strictly on a contribution basis to avoid paying ceasar(satan) any taxes:
I think the men on the gb are getting very old and set in thier ways, they may have been given good council from other departments such as legal or accounting and went against it or they may have surrounded themselves with yes men to such an extent that no one would dare tell them thier policy was bad, thinking who are we to give the gb council on these matter because they are the chosen ones, jehovah direct them and any decision they make has jehovah's backing.
They as a group suffer from nobody willing to give advice if it is not what the gb are already in favor of, lest they get the axe or demoted to a lessor position. They are in a rut with reguard to creativity in handling problems the organization faces, with no one feeling free to contridict the gb even if they have a good idea.
I think we must remember that these old guys are surrounded by people that agree with them reguardless of wether it is a good or bad idea, so they have no one to consult with who feels free to speak his mind, they rarely step out into the real world but are sheltered in thier own little kingdom where they rule supreme, and no negative comments reach them about how they are handling things, only smiling faces, and pats on the back on a job well done.