The job of the Central Bank is to worry.
The increase in inequality in income is a longtime trend, but the pressure on middle- and low-income workers is going up rapidly. Especially if they live in an area where there are high housing and gas prices, like California.
It's a technical, fairly difficult job that has no particular political connotations, so I doubt there are any big campaign contributors dying to be on the Fed. And remember, it doesn't pay very well, certainly by Republican standards.