"The Cold Equations." Is Marilyn to blame?

Marilyn, the young stowaway on the EDS in "The Cold Equation", is totally to blame for her own actions. She knew she wasn't allowed to be on that ship. Although she did not know the consequences of her actions, she is still at fault. Marilyn is 18 and should be responsible enough to take the blame. Besides, if the guy on the EDS lets her live, they will still probably die anyways due to lack of fuel, and if they can't reach their destination 6 other people will die. Is one life really more important than 6? She should realize that she would be making 6 other innocent people suffer and die, just for her own sake. Marilyn knows that she'll just be killing herself, the ship's pilot, and other unknowing people if she decides to be selfish and live for just a short while longer. She knows she made a huge mistake, as innocent as it may seem, and she should fully be responsible for it. No one wants her to die (except John), it's just that she caused the whole problem and should be the one to deal with it. She should be willing to die knowing that she is saving the lives of 6 sick people.