Its about rankings. Rankings is based on the # of points you have:
http://vdiplomacy.com/halloffame.php
So cause Bozo as 1300
he is ranked first, cause Roxart has 700
he is ranked 2nd etc etc.
There are currently 196 'ranked' players. AKA players with more then 100
. 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.