From the treatment guidelines in Narcissistic Ppersonality Disorder in Psychology Today
Therapists can actually use the narcissistic features of their patients to engage and assess them. To avoid angering the patient, it's important to work with, rather than belittle, the narcissistic ego. A therapist should, for example, address a patient's heightened self-importance and desire for control by saying such things as "Because you are obviously such an intelligent and sensitive person, I'm sure that, working together, we can get you past your current difficulties."
Hold the phone. This treatment guideline advises the therapist to lie to the patient, to flatter the patient = to manipulate the patient. Frankly, I don't blame the patient then (who is much better at manipulating people) for turning the trick and manipulating the therapist.
Nobody likes to be manipulated. How arrogant to think the patient doesn't know he or she is being patronizingly manipulated. Some way to establish trust. Some way to battle the delusions. Now Magical Thinking is no longer required to maintain them: it has help in the therapist's own support of these delusions.
Narcissistic personality traits can also be used to provide motivation for therapy. The patient may be induced to change negative behaviors: a better appearance, improved career prospects, or romantic and sexual conquests can been viewed as a reward for recovery.
Read the rest. throughout it seems to recommend nothing but drying out a drunk narcissist and teaching him or her new ways to achieve the same old ends - ways that seem more normal and therefore are just more stealthy - without ever addressing the pathology of the underlying disorder.
I am begining to see clearer and clearer why evidence increasingly indicates that treatment, if anything, makes predators more dangerous.