HipShot, you're a skilled questioner, but you've taken me to my limit of knowledge on this subject. All I know is that the left-over funds apparently go back in the kitty before the execution of the operation. The rest is speculation.
I was ultimately shooting for a weak spot in their money handling. It seems to me that they'd rather minimize the money transfers.
It may be that this guy was prepared to die, but he was taken off of his primary and secondary mission, and was maybe looking for a quick alternative.
That would be good news to me.
The more times you go for periscope liberty, the more likely you are to have a bird land on your periscope.