The point is these actions aren't any different than if they were enforcing any other ethical and legal policy. These emails aren't really shocking at all. It just shows its business as usual.
Which is part of the point. Employees are considered as commodities, and a career-ending breach of a (illegal) policy is treated as a fixing a bug in your code - jokes and all.
Hardly career ending. People get let go. It happens. You didn't see a "He'll never work in this town again!" This just seems to detract from the actual issue which is the policy itself.