Net worth: Wonder how much people are worth?

So I stumbled on the webisite:
[link to networthpost.org (secure)]

..and started flipping through it. I have doubts as to where the info here is obtained from, and obviously some are understated (off shore bank accounts?) but it's pretty interesting.

The Pope is worth ?$BILLION$?. Truth is, no one really knows what the Catholic Church is worth. I would guess it's at the top of the list.

J.D. Rockefeller tops the list at $340 BILLION

an interesting second place went to, wait for it...

Muammar Gaddafi 200 BILLION (anyone else curious as to where his $$ went?)
*Muammar Gaddafi was a controversial and divisive figure. Muammar’s supporters stress that he was successful in combating homelessness and ensuring access to food and safe drinking water for everyone. Having a net worth of up to 200 billion dollars, Muammar Gaddafi was able to give $30,000 to each of Libya’s 6.6 million citizens.*