That's not to avoid discussing the animal welfare concerns that merit attention, though. One can only speculate what's going on in the man's head at any given point, but I wonder where the truth lies in his pressuring for results.
In any case, it reminds me of the story from the KingKiller Chronicles of the member of the Amyr who killed tens of thousands of peasants in unethical medical experiments hundreds of years before the story of Kvolthe. Kvolthe reflects on the balances of lives saved with the medical knowledge gained, systemetized, and shared through those medical experiments, the balance being -to his estimate- positive.