The problem is made worse by the highly subjective nature of psychiatry. When practiced in good faith, it seems to be beneficial for some people. Of course, as a science, it is particularly soft. It has a long history of shifting its positions, and a long history of debunked and discredited bodies of theory. (Why do we continue to teach Freud and Jung in college English departments?) Psychology is the sort of thing that works only when you can trust the person employing it, and sometimes not even then.
I am not a psychologist, I am more of a computer scientist. Using leeway in statistics and figures, I can show you any result I want to. For instance, I could present a compelling argument that Facebook will expand extraordinarily over the next decade. I could also present an argument damning the possibility of Facebook expanding at all. Don't you think that, with a few weeks of study, I could apply any subset of mental disorders from the DSM-IV to any person I wished?
Would you trust a court-ordered psychologist to make an accurate appraisal of your psyche? I don't know that such an appraisal is even possible. And I am worried about the increasing confidence in these sorts of appraisals. It sounds like, very soon, anyone interested in furthering American business aims will be suspect for mental disorders. The pretext is already here in America's paper of record. How long before this movement grows to having real influence in our judicial system?
When Tom Cruise begins to sound more sane than the psychology he criticizes, you know something is wrong.