Then there are the times when otherwise solidly middle class people become radicalised by financial hardship and capricious and unfair actions of government and financial institutions. When the stable productive core of society is getting dislocated from it's niche and starts to see it's relatively moderate level of privilege erode; that is when you get transformational violence across broad sectors of society.

If you want to argue historical examples, both the french revolution and the rise of fascism in Europe followed this pattern.