Are you up to the test!?

Lets say that you're a super hero and there's a missile/s flying toward a school/hospital and at best you can only clear half the building before it gets obliterated. You could fly into the missile/s, sacrificing your own life and save everyone. Would you do it?

I was thinking about this earlier while watching Justice League and obviously you think 'Yeah of course' but I was thinking - What if you would be better off alive? Say that in a year of being alive you'd save more than you would by sacrificing yourself in this scenario, then technically you'd be doing the Earth a misservice by ending your life in exchange for the people you'd be saving.

Consider you save half the people and then live another ten years, saving over ten times the amount you would have saved, then that would be far better, but would people think so? You'd most likely be considered a coward, I know that if someone could have saved a loved one of mine and didn't I would probably hate them unconditionally. You've also got to consider if you could live with yourself, would those people you didn't save haunt you? Even though you're doing good everyday?

Im tempted to think that despite the reasoning, sacrifice maybe the better option. You go out in a blaze of glory, if there is any kind of positive after life then that's surely going to ensure you're a part of it, people would remember you, tell tales of you, hell, they'd probably erect a statue in your honour. And your legacy could inspire generations to come.

What would you do? End your life a legend or live a hero. I suppose it comes down to wether your ruled by your mind or by your heart.