It is.

[And he turns back to his napkin now continuing to work in the open spaces.]

There's a high mortality rate, no doubt, to get any measure of success in what he does. Not all of his subjects are prisoners though. Believe it or not, some went to him willingly. People with a similar lust for power. [Sasuke. He continues on, face shadowed, but voice still level.]

The end result for those are some monstrous strength and abilities.