But that wouldn't be effective because it's random, not because it kills people. A better analogy is if the pump worked perfectly, but killed anyone who the CEO disliked. That would be effective, yet monstrous.
Effective just means it achieves the intended outcome, it's not a value judgment on the goodness of that intention.
Effective just means it achieves the intended outcome, it's not a value judgment on the goodness of that intention.