In behavioral economics there's the game called the "Ultimatum Game"
Essentially it's when one side thinks the deal is so biased and unfair he'd rather tip over the board and have both get nothing than accept what he considers to be a rip-off offer.
This guy decided to tip over the board...
There's another concept in communication called "no acknowledgement"... which arise when you are trying to get someone's attention and they just don't seem to notice you're there... which causes people to essentially start pulling their hair out with frustration.
SO...
It makes sense for politicians to be very nervous about citizen anger over perceived favoritism to the wealthy... and feeling like they're not being listened to.
This isn't political conclusion...
It's a scientific one!