[Hayarotle]

Extreme situation that could be a counterexample to your claim:

Dr. Evil is 90 years old, his consciousness is slowly fading away, and he is going to die in a week. He is almost ready to release a bomb that will torture kill half of the world population. If you pull the lever Dr. Evil will die today and you will save all those people. You are the only one who can pull the lever. Do you pull the lever, or do you stick to your principle of not sacrificing other people who don't want to be sacrificed?