[omonra]

Ok - sure. That is a reasonable explanation (at least that I can not fault with being self-serving for a particular group).

But is there any proof for it that makes it more than a hypothesis? Is there any example of a company staffed by minorities that is more successful at serving those minorities?

Because all we really have are counterfactuals - I can't think of a single SV company that did well because it made a point of hiring from the underrepresented groups.