Mechanical systems used to be simple enough to be (mostly) auditable.

For instance, if you have a wind up clock on the wall and a chalkboard schedule in an office, you can be sure it tells the same time and the same schedule, regardless of who looks at it.

Like an evil secretary, meeting room scheduling tablets could be configured to gaslight particular employee by telling them they have a room reservation when they don’t, making them late/early, steering them to embarrassing interactions with upper management, etc. until they’re fired.