Just curious, why is it the Forbes magazine have list of the richest man in the world but not the poorest man?

Just wondering, why is it so hard to find the poorest man alive? Yup I know it is so easy to spot the billionaires or the millionaires in these world but the poorest of the poor. I guess who would want to read about a poor guy. We love the way he built his empire something like that but the poor man nothing to read except misery and miserable existence. Where is fairness in these world huh?