Nature of Envy is to take quality and interpret and re-interpret.
People's criticizing others is an exhibition of their envy to GOD.
Animalistic envy exists in human society as long as there is no performance of sankirtana-yajna.
Purport on Srimad Bhagavatam on 4.30.35
Sarcasm is just a manifestation of our hidden envy.
Swallow your ego and envy and digest it by chanting Hare Krishna.
If you don't have love, you have envy.