I think you are rough on the author -- the author doesn't know they're complaining that the underclass is unexploitable -- they actually believe that 'entrepeneurs' can help the 'underclass' by selling them the right products, if only they'd try harder.

The author diagnoses the disease, but their prescription, 'innovating' new things to sell to the underclass (whether in the first or third world) -- will never cure it.