Good you named one mmorpg that doesn't have it. Now let me name all the ones that did have world pvp.
Star Wars Galaxies.
Asherons Call
Asherons Call 2.
Warhammer Online.
Shadowbane.
Lineage II.
Rift.
Anarchy Online.
City of Heroes and Villains.
Dark Age of Camelot.
Age of Conan.
Everquest 1,2.
Final Fantasy XI.
Guild Wars.
Tera.
World of Warcraft.
Aion.
Archlord.
Darkfall.
And many more I can't think of right now. Plenty MORE mmorpg's had world pvp, your one mmorpg you stated is nothing compared to all the mmorpg's I listed. I've been playing mmorpg's for a long time, so spare me with your carebear mentality.
/Thread.