Jungle Gin

I may be incorrect but at one time if a player left a game when they were losing, they still lost rating points and the opponent still gained the points had they won the game.  Now there is no incentive to stay until the end because if you are losing and you leave you don't lose points.  Nor does the player ahead at that time gain points.  So you've played an entire game, the opponent behind leaves and you get nothing.  Can't it go back to the way it was