Tangential to the current discussion but why do I always sense a reluctance to include matters relating to social class in these programs? When I bring it up during D&I discussions I'll usually get blank stares, and in one instance there were crude comments made about needing to beef up building security first.
Race and gender are probably just really easy to quantify vs "we have a program to make sure we hire people who are dumb, ugly and socially awkward".