The unproductive managerial class grows at the expense of the shrinking productive class. From the Zman at theburningplatform.com:
One of the consequences of the neoliberal order is that labor markets in Western societies are at war with themselves. On the one hand, the relentless competition within the managerial class, the so-called meritocracy, results in a relentless, passive-aggressive struggle for status. Within that class of people it is a state of constant anxiety, as these people worry that one small misstep will cause them to lose their standing within the managerial class. Everyone is miserable.
On the other hand, the math of the managerial system means pitting worker against worker, usually relying on foreign mercenaries, to suppress wages and prevent class solidarity. In order to support the swelling army of otherwise useless people in the media, academy and government, it means extracting ever more from the laboring classes and their private employers. The typical private sector worker is under relentless daily pressure to do more with less.
Compounding this is the natural response to these pressures, where workers accumulate in areas shielded from competition. Government grows, as a jobs program and as a way to maintain support for government. The massive growth in government, education and now health care are responses to the relentless competition within the so-called private sector. Skip to the bottom of this post, where there is a graph showing the growth in administrators within the American health care industry.