One of the things that makes Eve Online unique is that it’s one of the few MMORPGs where players can actually destroy other players items, in this case ships.
According to Eve-Kill.net the most notorious killer in the Eve universe has caused more than 2 trillion ISK in damages to other players. To put that into perspective, you can buy 20 billion ISK for about $370, according to one of the many Eve ISK sites I found. Which means that this one player has caused about $37,000 in damages and loses to other players. Mind you this doesn’t include items obtained or stolen during these attacks, only the actual value of the ships destroyed.
If you count the top five killers, they’ve caused more than $127,000 in damage to other players. That is no small sum of money.