The title pretty much says it, but let's explain ...
We have a serious problem in America: Workers in this country have not seen their level of compensation rise in 40 years in comparison with executive and shareholder compensation, the actual cost of living, or even their own productivity.
Our political leaders have focused on the disparity between worker and top executive compensation, referring to it as either "pay inequality," or "pay inequity," but this has created an atmosphere of defensiveness on the part of those at the top of the corporate food chain. And this is not the atmosphere that Progressives want to engender. We know it's going to take all of us working together—especially those at the top—to get this problem solved.
And lagging worker compensation is a problem, not just a "discrepancy" issue or a "fairness" issue. And no one thinks the average worker and the most senior executive should be earning "equal pay" as one another. So what is the real problem?
From at least the mid-twentieth century until the mid 1970s, worker productivity and worker compensation traveled on the exact same path. Hard-working Americans saw their pay increase in direct proportion to their efforts. This made for a robust working and middle class in America, who had money to live on, money to spend, and money to save. When the middle class has sufficient money to live on, they only need to fall back on taxpayer-funded assistance if they hit a serious bump in the road, such as the loss of a job and the draining of all savings.