I completely agree though with a caveat. I can’t imagine a just way we would completely eliminate people like Putin.
You institutionalize them instead of giving them the keys to castels. Vikings turned their psychopaths into their most vicious fighters and isolated them from the rest, we decided to put them into positions of power both goepolitically and economically, then glorified them and it’s now killing us. Before that psychopaths have been described and usually killed off on the spot. If we ever get to be a space fairing civilization it might be smart to utilize them as resource allocators on multi generation ships as their lack of empathy could actually benefit the survival of the whole in those situations but not when we allow them to use accumulation of wealth as their tool as it drains everyone’s resources.