I only have a couple of minutes before having to head out. So I will have to be brief for now.
Net worth of the Society? I have no idea. COnsidering the property they own and estates still coming in regularly it is probably larger than many country's GDP.
Mental illness. Depression and 'environmental allergies" seem to plague many Witnesses. Bethel is pretty hard on anyone less than 10 years who develop any kind of illness that could prevent them from doing their assignment. Unless of course they are in a prime position such as legal or Service desk overseer or on the Branch Committee (of course).
I have seen many a single brother and married couple 'encouraged' (read told) to leave. No support financially, just told to go home and hopefully the local congregation will step up to help.
The closest thing I can think of that is not really a Department is the Bethel Elder/Shepherding program especially for new Bethelites. These are more of a spy position and telling them what is acceptable or not. Making certain they don't miss morning worship etc.
If they have set up anything more beyond the normal infirmary and Bethel elder arrangement I would be very very surprised. That would require feelings and human emotion which isn't usually manifest within Bethel policy.
Marvin! Good to see you. We'll talk.
I am not familiar with US Tax law regarding charities but in Canada I know they have to submit a public tax filing each year that details money in, money spent in different manners including how much money left Canada to support other charities (including to the US). I would imagine there is something similiar in the US in order to maintain charitable status.
Oh and Shamus - Monkeys have bad breath and are actually reptilian aliens... I am outta here... LOL