What really matters most to me today is not my mission, but my family. Because that's probably true for all of us every day, the mission matters all the more. The mission is to add years to life, and life to years. When the lives and years belong to someone we love, it's the most important thing in the world.
If instead, we treated obesity more like drowning, we would tell the truth about food. We would not market multicolored marshmallows to children as part of a complete breakfast. We would not willfully mislead about the perilous currents in the modern food supply. We would not look on passively as an entire population of non-swimmers started wading in over their heads.
Only by using median wealth as the indicator of a country's wealth can a ranking system produce rankings that reflect the vast majority of people in each of the ranked nations. It's the only fair international ranking-system for the various nations' wealth: it shows the wealth of the typical person in each country.