They can run, but they can't hide. They'll get theirs just like every other parasitic class has in the past.
How naively optimistic of you. If history teaches us something, it's that most parasites get away with their misdeeds and live happily ever after. A few chopped heads might make you feel better, but doesn't change the big picture.
Last I checked feudalism is more or less nonexistent in 2015, as is slavery and other classical forms of exploitative class society, so I'd argue that history teaches us otherwise. The funny thing about history, though, is that it's something made by human activity and the interaction of human beings with their environment, and as such, we cannot be guaranteed what has happened in the past will happen in the future. Nevertheless, I am optimistic for the future. I believe that one day we will see the collapse of this whole rotten structure and real democracy erected in its place. If that's naive, so be it. But I'd argue that what is far more naive is the expectation that change either won't happen or can only happen through piecemeal reform, or that anything meaningful will be achieved via the route of compromise with the enemies of human liberty.