Forget the notion of being a martyr in order to be of value. Isn’t it possible that in order to be of the highest value to people you care about, it requires that you are wealthy, healthy and really, really happy? How valuable are you if you’re miserable? Don’t worry that being of value will require you to sign your life away to handing out blankets to the homeless. Just let your passion guide you, even if you’re uncertain what it is.