It's also very important as a step on the way to understanding how precarious that position is. That inequality is unsustainable in the face of increasing abili

It's also very important as a step on the way to understanding how precarious that position is. That inequality is unsustainable in the face of increasing ability to have someone do the same work elsewhere for a fraction of the cost. People need to adjust and plan accordingly, but first they need to understand how anomalous the US "middle class" has been.