Psychopaths: Population subset without conscience --
Sott.net Comment: Ignore Ronson and Fallon's 'insights'; they're muddying the issue, intentionally or not.
Most psychopaths are very difficult to spot, so there's no point in trying. Instead try to learn all you can about them. Besides Hare and Babiak's work as a good introduction to the topic, there is also Dr. Martha Stout's work.
While it's tempting to seek a silver lining about this bleak revelation that psychopathy has reached pandemic levels, we would caution against thinking that because they're CEOs, doctors, lawyers and soldiers, they're successful and therefore 'good'.
What if the war those soldiers are waging is illegal (brought about by high-level psychopaths - Blair & Bush, anyone?) - is their 'service' still 'good'? What if the 'work' those CEOs produce is destroying a country's economy, draining people's wealth and leading to massive bonuses for a few while starving the rest?
'Successful' when applied to psychopaths doesn't mean they're productive members of society; it means they've successfully hidden their alien condition, which is all the better for preying on unaware people. When you get down to it, the world has only one root problem from which all else stems: psychopaths.