Re: Can they not use their powers for good?
"use what they know to control that person and the power the wield as an ‘asset’? Blackmail is major currency in intelligence."
Very shortly after the death of Jeremy Thorpe a couple of weeks ago, a clearly long-suppressed documentary went out on BBC Radio 4, with a couple of specific recent updates following his death.
You might like to listen to it. But you can probably guess the kind of thing that was going on in and around Westminster back then (in terms of the 'intelligence' services anyway), and is probably still going on now.