Do some ends justify any means?

Do some ends justify any means?

I believe that some goals (ends) are so important that they justify nearly any means. It really depends on the situation. I believe that if it is a life threatening situation then any means should be justified.
Throwing People Out Of Too Full Lifeboats In Order To Save Anyone
Take for example throwing people out of a too full lifeboat in order to maximize the probability of saving anyone. In this case I definitely think that the weakest should go. Why risk the life’s of everyone? I could only hope in this situation most people would be willing to risk their own life to help another.
Selective Cannibalism
As for selective cannibalism ...