Now I don't see it like this (accountability) - I think this is a simple follow the dollars job.
Here in UK - how many congs? 1500? Let's say just one appointment/deletion per CO visit on average. That's 3000 processing and rubber stamps to get though - ten/twelve a working day for one man for a year. They can save a bethelite's (and his toilet cleaning wife's) board and lodging by chucking it to the CO to do. Now take all the pioneer on and offs being done by the Service Committees - that's another bethel couple to lose.
Now take all the appealed deletions that need branch approval - all down the COs' chute.
In the USA times that by what 8? So lots of lolly saved.