There's a difference.....
.... Between Monitoring and Surveliiance.
I used to work for a Government Department, where unauthorised access to client records was punishable by dismissal, if you were lucky, and criminal prosecution if you were not. It was well known that the department was logging all access to client records, and this was enough for the majority of the 20,000+ staff to do the right thing. This is MONITORING.
SURVEILLANCE (and potentially BULLYING) is when the system reports how often your computer is idle, how often the screen is locked, how many phone calls you made or answered today, how many forms you processed, etc..... and when the results of the report are used to justify disciplinary action against the worker. The worker usually has no access to the report data, won't necessarily remember a day's work 1-2 weeks ago, and if he/she is called in to the manager's office, the onus is usually on the worker to explain the discrepancies, not the manager/organisation. It cannot be assumed that poor results on their own mean a poor worker, but all too often that's what management assumes.