What is right for me may well be wrong from someone else’s perspective. So all the answers to this question are right and wrong, probably both at the same time.
If ever, I need to make that decision, I would say that well, it depends on who the other people are. Knowing the background and history of the person for whom I am supposed to sacrifice myself if of utmost importance in this case. The question becomes infinitely interesting if the history of the other persons is not available.
If the history of other persons is available, and if its me against a bunch of criminals who have committed horrors, then definitely a BIG NO. If it’s against someone who is a much better person according to my ethical standards, then he/she deserves to live a little longer than me.
If the history of other persons is not available, then it depends on the state of mind I’m in. If I’ve been suffering from depression, and I’m not able to see any silver lining for a long time, and life itself has lost meaning to me then I will want to restart my life. In that situation, Death may seem like a good idea to make a restart.
There are just, too many “ifs” to this question. No one can say what exactly they will actually do, until they are in the situation themselves.