That's a bit of a stretch; the study seems bogus.
The headline, perhaps so, but the study makes perfect sense.
Consider: the study relies on self-identification. People who identify themselves as ugly probably have self-confidence issues. Self-confidence issues lead to an inferiority complex, and when you have an inferiority complex, you have a greater tendency to be envious of others and blame others for your problems. That is the mindset at the root of the Occupy movement.