Dear @gypsii your question is a genuine one and if company wants to monitor the systems used by employees its no big task.It can be done with just a click.
You can monitor the data / websites accessed by employees by :
1. Installing remote software in employers computer
2. Installing software in any computer within network
You can find one such remote monitoring software here : https://app.activtrak.com
These softwares :
1. Sends screenshots of your screens in regular intervals
2. Are Hidden within the client system & are not visible even in Control Panel
3. Anonymously sends data to the server and the head of your organisation can easily watch them.
A typical dashboard is shown below :