I mean, in the period of history from the 1980s to now, in contrast to other periods, wealth disparity increased as a direct result of laws being changed, policies being amended, and which regulations the government chose to enforce or not enforce.

It's hard for me to look at the idea of "law, policy and regulation should now move the needle in the other direction" and see that as grossly unjust. We can debate whether social security is the right place to do it, but it seems like one of the top options to me, considering the huge wave of people who are going to be jobless, old, poor and alone, and therefore vulnerable, as the Millennials age.