The wealthy only take seriously the concerns of the wealthy. Everyone else is basically on the sidelines looking for help, or imagining that one day they too will be wealthy. So even lots of folks on the sidelines are obsessed with the concerns of the wealthy.
Maybe the poor and disenfranchised Schlubs think that if they think like the wealthy ones, they too will magically become wealthy too?!
Krugman has been hammering this home in his own way....
"it’s more a matter of the wealthy gravitating toward views of economic policy that make immediate sense in terms of their own interests, and politicians believing that only these views count as Serious because they’re the views of wealthy people."