I take issue with the "send the incompetent people to psychiatry, they can't mess anything up." I had a patient in the ICU s/p massive overdose after her psychiatrist told her there was "nothing more he could do to treat her depression." Yeah. There is a tremendous amount of good and a tremendous amount of harm that can be done by a psychiatrist. The wrong words from a trusted psychiatrist can send patients into a tailspin, can push them to end their lives, can lead them to harm others. The wrong judgement call from a psychiatrist such as an early or inappropriate discharge can lead to morbidity and mortality just as surely as a wrong cancer diagnosis.
I can just as easily dismiss a possible pathology slide misread - how much difference does it make if grandma's biopsy is read as DCIS vs the actual invasive ductal cancer that is present at age 85? Does it matter? Maybe she'd be better off with a misdiagnosis so hem/onc doesn't get unleashed on her. Half the time tissue gets sent for path for due diligence and the report gets read by precisely nobody.
Edit: Also, take a look at the SDN pathology forum for a refresher on this "hallowed and revered" specialty.
Pathology
is hallowed and revered! It's much older and more distinguished a science and specialty than psychiatry! (Even to make this statement I have to use the word "science" loosely since it so often doesn't apply in our field. Go look at the "therapy dog" thread for proof.) Without pathology we wouldn't have anatomy lab and basic causes of death wouldn't have been discovered! Pathology might be full of problems and have a bleak job market, but if I had to choose a specialty to throw overboard, or a tome of knowledge to eliminate, I would throw psychiatry and the DSM out before pathology and the Robbins textbook (or whatever its name is). You are being cynical with your example that a pathology slide misread for an 85 year old is unimportant. The equivalent in our field would be saying it doesn't matter if you discharge some drug addict and he kills himself - he would have died anyway. You wouldn't say that! Similarly I doubt you'd want your spouse or kid to not have their r/o melanoma biopsy correctly read if it came to that.
I agree that an incompetent psychiatrist can be a dangerous thing. Your example comes from the realm of psychotherapy and that indeed is a challenge of our field. Saying the "wrong thing" can be very harmful. My point was, diagnosing the wrong thing isn't what's going to harm that patient. Even the dreaded NMS, despite all the emphasis placed on "recognizing it" in psych residencies, is almost impossible to cause! I have seen people taking 100s of milligrams of haldol and they do ok. Even the more dreaded hypertensive crisis is nothing compared to an aortic dissection or conditions that other fields routinely deal with - and they have to diagnose them correctly and quickly. I'm sorry but in my opinion we are indeed a field where kindness and compassion can make up for a lot when it comes to differential diagnosis skills.
I am not going to say that it is absolutely unnecessary to be able to diagnose things in psychiatry, because again there are lethal conditions we theoretically deal with (ie. hypertensive crisis), but they are rare and not the most acute situations in all of medicine. So we have this buffer. Pathology does not have that buffer. They have to make correct diagnoses or they get sued.
If this psychiatrist really thought there was nothing more that could be done than he should have referred her to another provider or a more intensive form of treatment, and I doubt he actually tried "everything." But she wasn't in the ICU because he misdiagnosed her! In fact it sounds like he correctly diagnosed her!
So his differential diagnosis skills are actually to be commended.
EDIT: Lest anyone think that just because I said I'd get rid of psychiatry before I'd get rid of pathology, that I'm "discounting the importance of psychiatry" - let me clarify this. I think psychiatry is important. But in a history of medicine textbook, no one is going to put an advance from psychiatry on the front page. We have had advances, but they have not been ones that have transformed all of medicine. Whereas without certain developments over the years - autopsies, antibiotics, anesthesia - medicine would be far behind what it is now. I know this forum tends to be extremely reverent towards psychiatry and I don't mean to offend anyone; but truly I cannot imagine modern medicine being what it is without pathology.