Security camera systems have several obvious advantages. Safety for employees and assets. After-hours monitoring for theft or vandalism. Helping locate misplaced items. Even preventing criminal activity in the first place.
Access control systems simplify granting room and building access to employees when and where they need it. No more key inventory, changing lockbox codes, or rekeying due to lost keys. You can even remotely grant temporary access to employees or contractors for specific periods of time.