If I was Defence Minister I would tell CAS to rehire the Group Captain who showed some spine, promote her to Air Commodore and put her back in charge of recruiting. I would then fire the CAS.
That would send a message to the RAF top brass.
However that will never happen because politicians will never reward honourable behaviour in the armed forces.
The whole sad charade reminds me of the old management maxim
First rate leaders hire first rate assistants, second rate leaders hire third rate assistants.
A guy like Wigston at the top is what happens when every step up through the senior ranks was a result of sucking up to second rate leaders.