"done well" is really hard to define, and its also very hard to attribute back to one thing when you do have success.

Did you get the sale with the customer because you invested in DEI? Or because you made something they want by accident?

Customers can also talk in different languages, and as a result of historic oppression, minorities tend to be able to code shift. Assuming your potential customers are unable to become customers because of their limitations might not be right