The Wisdom of Psychopaths: What Saints, Spies, and Serial Killers Can Teach Us About Success, by Kevin Dutton, has this side-by-side list of professions with the highest percentage of psychopaths (CEO tops the list) and lowest percentage (Care Aide has the fewest psychopaths).Here's Eric Barker's take on why this is so:
Most of the professions on the right require human connection, dealing with feelings and most of them don’t offer much power. Psychopaths, by their very nature, would not be drawn to or very good at these things.
On the other hand, most of the roles on the left do offer power and many require an ability to make objective, clinical decisions divorced from feelings. Psychopaths would be drawn to these roles and thrive there.