I don't know if you realized this, but dying sucks. Most people want to survive as long as they can so they can take part in the victory. Certainly nobody is going to be content with dying straight up; ain't no way to say "I took one for the team!" there, ain't no obvious contribution to be proud of.
Consider this - you get a spot in the Jamaican relay team and win gold because you got three of the fastest dudes in the mothersmurfing world in your team. Anybody could be that fourth, it don't make you special and it sure as hell won't make it feel as good as earning that. Same deal, Sigs.