Yeah also if she were ever out of the control room and back with prisoners, suspects, etc they would have way too much info on her to use against her.
Prison officers and guards are advised to protect their personal lives at all costs so when dealing with criminals you don’t want them to know where you’re from, if you’re married, kids, where you go out etc. All info can be used, abused and manipulated against you. Not saying they can’t have SM pages or lives, it’s just about protecting your own life and sanity.