That's correct. I think in the real world that doesn't come up. What is the hypothetical? would you murder an innocent little girl to save your child. That isn't a gotcha. That wouldn't work. Even if it did work, the ends of that is that everyone has to wory about their children being scrapped for spare parts. That logic works under cpaitlaism. That situation infact happens today for capitlaism. There just aren't situations where if you accurately assess the ends it justifies terrible means. Under capitlaism we do terrible means for terrible ends. We are so used to thinking of that that it us hard to think of alternatives, but your failure of imagination doesn't make you morally right.