...I notice that, while they were not ignorant that they were causing pain and emotional distress, they did honestly believe that they were doing the best thing and, indeed, even made a genuine attempt to persuade humanity, from first principles, that this was the right and good thing to do.
So they were doing, at all times, the action which they believed to by most moral, and were apparently willing to at least hear out contrary arguments. I still maintain, therefore, that their actions were immoral but they themselves were not; they made a genuine attempt to be moral to the best of their ability.
Hmmm. I had to go back and re-read the story.
...I notice that, while they were not ignorant that they were causing pain and emotional distress, they did honestly believe that they were doing the best thing and, indeed, even made a genuine attempt to persuade humanity, from first principles, that this was the right and good thing to do.
So they were doing, at all times, the action which they believed to by most moral, and were apparently willing to at least hear out contrary arguments. I still maintain, therefore, that their actions were immoral but they themselves were not; they made a genuine attempt to be moral to the best of their ability.