I would like to know if there are examples of Silicon Valley actually solving issues around disparity. Social and economic justice has typically been addressed

I would like to know if there are examples of Silicon Valley actually solving issues around disparity. Social and economic justice has typically been addressed by the margins of society — while those “instigators” seem have have deftly used technology. The Black Lives Matter movement, the career of women technologists who this year brought to the fore pervasive sexism in Silicon Valley are two examples that come to mind, maybe YC funding of Africa-based startups is another?