Capitalism

Even if Keynesian style economics helped to soften the blow by tempering the excesses of the ruling class, it wasn't enough to avert the coming demise of free market capitalism. 

During the great depression there was the FDR initiative to create a cushion for the working class. An understanding was reached that the worker needed living wages and an ability to sustain themselves once a lifetime of work was completed. Social security was introduced.

It was an attempt to curb the worst instincts of the rich. 

We are at that juncture today where Marx's late stage capitalism is coming to fruition. Once the wealthy own everything there is nowhere else to go except to adopt a new model that suits more people....