Well, best of luck with this job. Remember, as your wife is handicapped, she will not have to go without necessary doctor visits or medication. Call ‘social services’. But, hoping you won’t need to.
I have heard, from a moderately reliable source, that probation is becoming more used in criminal cases, so, I imagine that a necessary ‘evil’ is they don’t need as many in-Prison staff. So, you may want to work on your other skills, maybe discover new talents. In short, this may be a ‘blessing in disguise’.
Please, don’t let this get you down. Continue being the husband and father you know you can be. God Bless!