Just wanted to toss my hat in the ring as well, it would be really cool if a dev popped by to say this was on their radar! I haven't been paying attention to the money (I assumed that the $$ was just added to my current total, and not that it was in the treasury box) I do know that items from quests show up there. I did not hire anyone early in the game, only just did. Recently had it say that they had been paid, but all are listed as being 'unpaid' in the stronghold dialogue. They do not seem hostile so far. I've only had one attack on the stronghold and that was before I had hirelings so I can't attest to their aggro-ness.