It's amazing how much security people and companies are willing to give up for a smidge of convenience. Properly deployed CCTV has little worry of hackers since, hence it's name, it is closed-circuit.
In my case, I've got a camera in my elderly parent's back yard as there have been a few falls in the back yard, and one break-in some years back.
Being able to remote in and go "ah, everything's fine" basically can instantly turn such anxieties off, rather than say, having to live with it until you finish out the work day and can head home.