That's not how I see it. Yes, the employer (the organization) may be psychopath but I am not interacting with an organization while having a difficult conversation. I would be interacting with a manager or a colleague or someone who reports to me. These are human beings who are not psychopath. These are also not short-termist. Sure, we would all change jobs sooner or later but I would sure like to maintain good relationships with them and hopefully work with them again in future. So it makes a lot of sense that while talking to them I talk to them with some empathy which I think they deserve.
I am a huge fan of NVC, and I agree most people are not psychopaths. Unfortunately, organizational structures can be such that decent people are forced to behave like psychopaths, and I don't think that NVC, at least not by itself, can fix that.