Units of Utilitarianism

Has anyone ever given consideration to what's the significance of their "life"?

Of course.

But no one has ever decided to measure it?

Of course.

People should be measured by their interactions with the world.  These units, positive or negative, will result in their evaluation in society.  Those with more positive measurements are rewarded.  Those with more negative measurements are punished.

It's a simple method.  In a few years the Internet will be able to check on the measurements of each individual of a state (not that it will, but it can).  Possible units of measure include: the number of people that die as a result of an excessive usage of resources by one person, the number of offspring that cause overpopulation, or the amount of creativity that can be monitored through the Internet as well.