"It is possible, to some degree, to modify the behavior and habits of a psychopath by the use of carrot if not stick."

It seems logical that they would respond to rewards, however once the rewards stop or they work out a mechanism to gather greater rewards, they will opt for that mechanism. If this mechanism causes harm to others they will be indifferent, or even pleased, as they reserve their greatest derision for their victims.

All research about psychopathy, that I have inspected, concluded psychopathy is incurable. Therefore efforts to cure or mend their ways is a waste of time. If you find yourself close to one, you should escape as quick as possible. This is difficult if they are family members, spouses or work colleagues.

This post by tarazkp, highlights the necessity of game theory within cryptocurrency, to punish inevitable bad behavior. The current haejin flag war is no better example of this. It also highlights to people who think that there is good in everyone, that they are incorrect, such foolish thinking will make you easy prey to a psychopathic predator.

Remember most psychopaths are non-violent. But they will damage you mentally and spiritually. The best thing you can do is avoid them, if possible. Definitely don't try to fix them. They can't be fixed. Nor listen to them if they tell you they will change. They can't change.