This type of optimization has been happening since the beginning of the assembly line or even before it. Plus, employee/employer relationships are always adversarial. I want as much as I can get out of the company and the company wants to get as much out of me as possible.

As for it going into production I don't see why it is a bad thing. You could turn the whole thing around and help job seekers find companies where they know they would be happy and productive. After all it is a similar kind of optimization but from a different perspective.