Not only do machine spirits exist, but they reward those that show proper respect. If a mechanic is mistreats a worker that the machine spirits likes, it will shut down until the worker is given reparations.*
Ran a simulation , least expecting death in a mechanicus factory at the hands of a blood raven for getting revenge after one of their faction's assholes stole a power cell and killed off my co-pilot for the mech ... Dick move but the lives of 3 is a good number for the 2 of us .