The Logical Fallacy of Argumentum Ad Invidia / Appeal to Envy occurs when envy is stirred up in order to influence. Envy is an empty emotion. It is not so much interested in having what others have but in seeing them not have something that you don’t have. Appeal to envy is used a lot in politics as one of the main motivators to elect certain politicians.
Politician, after raising taxes on 77% of wage-earners: “I’m willing to do more, as long as we do it in a balanced way that doesn't put all the burden on seniors or students or middle class burdens but also asks the wealthiest Americans to contribute and pay their fair share.”
Socialism is an economic system based on envy.