Its about rankings. Rankings is based on the # of points you have:
http://vdiplomacy.com/halloffame.php
So cause Bozo as 1300
![webDiplomacy points D](images/icons/points.png)
he is ranked first, cause Roxart has 700
![webDiplomacy points D](images/icons/points.png)
he is ranked 2nd etc etc.
There are currently 196 'ranked' players. AKA players with more then 100
![webDiplomacy points D](images/icons/points.png)
. To calculate your ranking you divide your ranked (in my case at #87) by the 196. This givers you your ranking %. Again using me as an example we get 0.45. If that number is over .9 your ranked a political puppet. If that number is under 0.05 your ranked as a diplomat (I forget the rest of the list). So its not based on points, but the number of points you have compared to everyone else.