It's also cruelly ironic that those who are already sick are likely to get sicker as a result of their care - bacteria in hospitals, mistakes during surgery, side effects of chemo, etc. Some of this is the purpose of the therapeutic profession - it is meant to serve the vulnerable, and as a result it attracts people who prey on the vulnerable.

But what you're saying is the profession [eta - its methodology] itself at heart is designed to prey on the vulnerable, if I'm reading you right. I don't disagree - if the therapist's approach is going to be to infantilize the patient, it is unbelievably easy to do damage, accidental or not.