I mean...if that bothers you, I could make them do that from time to time
I'm confident the Dev team has more important things on the to-do list
I don't have anywhere near what the ransom is asking for. Besides, I think a week in prison is harsh enough a punishment, I wouldn't think it a good idea to make it even worse.
Especially since it seems you can't even bribe the rogues... so... yea. A week of total lock-out. Pretty much the worst that can happen to a character, short of death.