Guild Wars 2

Deserting will always award the maximum point loss, as if the player’s team had a final score of zero.

Players are rewarded for playing well, even if they lose the game.
Players who play well are rewarded more often than those who have a few lucky matches.

Is there any penalty for deserting other than losing points on the ranking system?
Or why should I care about the rating system? Lower rating will connect me with other deserters or what?

Players are compensated for uneven matches by increasing rewards with risk.

What rewards exactly? How much is it increased?
My question is. What’s keeping players who don’t care about the ladder ranking from leaving an unbalanced match?
I know these players exist. There are people who ragequit and don’t care about the rewards but do care about the score.
But there are also people who are only interested in rewards like money.

Deserters, who desert too often, will get the dishonoured debuff, stopping them from entering another match.