My mum got an insurance payout when dad died (I was 5). I later learned that one of the elders convinced her that loaning it to build the local kingdom hall would be a good idea. So mum gave them an interest free loan of around 100K (in the early 1980s). At that time you could have purchased two nice houses. Or one really nice waterfront house, and a new car.
As a child, I used to think that elder was just a great bloke. He invited our whole family over to his house quite often. He used to make us mow his lawns, and do yard work, which I didn't mind too much. He also included us in his family activities. After the hall was built, we had very little to do with him. The hall was his pet project.
It took over 20 years to pay the principal back.
Needless to say, mum doesn't really have any money, and lives on the pension (but is still a devout JW).