Seeing psychopaths for what they are

A reader sent this very long selection from "The Psychopath Test", which appears to have the most salient parts. Some selections:

Everyone in the field seemed to regard psychopaths in this same way: inhuman, relentlessly wicked forces, whirlwinds of malevolence, forever harming society but impossible to identify unless you're trained in the subtle art of spotting them, as I now was.
***
Becoming a psychopath-spotter had turned me power-crazed and a bit psychopathic. I was starting to see the checklist as an intoxicating weapon that was capable of inflicting terrible damage if placed in the wrong hands. And I was beginning to suspect that my hands might be the wrong hands.

I met up with Hare again. "It's quite a power you bestow upon people," I said. "What if you've created armies of people who spot psychopaths where there are none, witchfinder generals of the psychopath-spotting world?"
***
Journalists hardly ever made it to a DSPD unit and I was curious to see inside. According to Maden, the chief clinician at Tony's unit, it wouldn't exist without Hare's psychopath check-list. Tony was there because he had scored high on it, as had all 300 DSPD patients. The official line was that these were places to treat psychopaths with a view to one day sending them back out into the world. But the widespread theory was the whole thing was in fact a scheme to keep psychopaths locked up for life.
***
I wondered if sometimes the difference between a psychopath in Broadmoor and a psychopath on Wall Street was the luck of being born into a stable, rich family.
***
"Ever since I went on a Bob Hare course, I've believed that psychopaths are monsters," I said. "They're just psychopaths – it's what defines them, it's what they are." I paused. "But isn't Tony kind of a semi-psychopath? A grey area? Doesn't his story prove that people in the middle shouldn't necessarily be defined by their maddest edges?"

"I think that's right," he replied. "Personally, I don't like the way Bob Hare talks about psychopaths almost as if they are a different species. . . . I would also say you can never reduce any person to a diagnostic label. Tony has many endearing qualities when you look beyond the label."