They lash back, which is supposedly where the sin begins. Sin divides minds into two halves. All that is supportive is good and creates positive reactions. All that is opposing is bad and creates negative reactions. It is only possible to be jealous of enemies, because threat only comes from enemies.
Enemies are the victims of sin, because they react against it.
The victims are vulnerable persons, because only they can be prevailed against. What it adds up to is that jealousy looks downward, not upward, because corrupted persons are jealous of their vulnerable and powerless victims. They have the ultimate thing to be jealous about, which is justice. The victims of sin have justice on their side. Justice is the ultimate force which always prevails eventually.