Exactly! Sniffing passwords out of coffee makers is hard to scale. Lots of tech needed/knowledge. Wrenchs scale linearly with people given wrenchs, and typically one does not need training to apply brute force with wrench. You may be able to save on labor even as other primates can use the wrenchs better and with more force than humans.
Most offices are going to notice if someone abducts the IT manager and beats the wifi password out of them. They're probably not going to notice that someone took away the trash they threw out.
