What indicates "diversity in tech" is broken? Are there notable examples of wildly successful companies that credibly attribute their success to "diversity", i

What indicates "diversity in tech" is broken? Are there notable examples of wildly successful companies that credibly attribute their success to "diversity", in the same way they attribute it to low overhead, technological innovation, economies of scale, etc? There have been historical examples of companies that became successful by tapping into cheaper sources of labor (notably in the agricultural sector). Is this what is meant by "diversity"?