Envy is a celebrity deadly sin, many philosophers think it's the worst. Joseph Epstein writes in Envy, "Envy clouds thought, clobbers generosity, precludes any hope of serenity, and ends in shriveling the heart."
Jealous is intensely felt, you are jealous of what someone has. Envy is cold and sneaky, you are envious for who someone is, not just for what they have. Jealousy about the pensions of government workers spurs you to fight for your own pensions. Envy would spur you to spitefully lobby to cut their pensions. A dose of jealousy helps you; envy hurts all.
The envy machine is cranked up.