I don't consider 'whore' to be derogatory. Whores make needy people very happy.
But people such as myself who rarely get valour continue to play. True, we have to switch characters between money makers and money spenders, but that's a nice change. I love bombing around on my courser in my transitional plate, but I also like running around in lighter armour stabbing people in the face with a dagger- especially guys in heavy armour (heh heh).
But my point about valour whores team victory achieving heroes is that both sides usually have them so it can still go either way, but if all of them were gone all the loser players' KD would go up. And killing a few people rather than getting immediately crushed under a long maul is worth more than all the multipliers in the world.