collapse of the old society

Actually, for everyone. The rich absolutely depend on the poor to sustain their lifestyle. They are basically pampered housecats thinking themselves rulers. When the poorest start to buckle from the pressures of climate change, it'll cause damage through all classes. When things start to collapse, everything will collapse. It's why the rich constantly bug their survival gurus on how to keep people obedient without a functioning economy. The answer is you can't.

No one is escaping. You either die before it gets bad or you die because of how bad it's getting. The very best case scenario for the rich is a lonely existence surrounded by death; waiting for the world to finish them off as well.

We are entering the opening notes of humanity's swan song.