Agree with you crocodile, it really can victimize the victim even worse. There have been studies and therapy and Psychopaths are a bad mix, can make them even more clever. I can't imagine seeking help, spilling out your heart with a Psychopath sitting next to you very cleverly taking notes on what to use to punish you later. Over the years way too many people have posted about the therapist turning against them and siding with the Psychopath. Therapy shouldn't be about taking sides, but being in a safe place to get help.
It is very important to screen any therapists or shrinks, just because they have a plaque on the wall and a fancy degree means very little especially if they themselves are not functional and have clear boundaries.
In full disclosure so you can determine where I am coming from I have to say that I have a strong bias against these professions, do I think they are all bad, of course not but great caution should be in order whenever a person is seeking advise about life. I had my life turned upside down, heavily medicated etc. for years so naturally I am very cautious.
On the positive side many members have found help which was a huge benefit to their life plan. Wise therapists or shrinks have been able to point the person in the right direction. It is a matter of taking control and interviewing them to see if they are right for you. Seeking help by joining a community like here or seeking professional help is the first step in knowing you have some issues to deal with.