Correct and standard are not the same thing. It's one thing to say African American Vernacular English (AAVE) isn't standard, and that Standard American English

Correct and standard are not the same thing. It's one thing to say African American Vernacular English (AAVE) isn't standard, and that Standard American English (SAE), what with the Standard in the name, is. It's a totally different thing to say AAVE is "incorrect". Regardless, the idea that everyone in your company needs to speak SAE because it's an important part of the business is a little like Facebook saying everyone in your company needs to program in PHP because it's an important part of their business. There is such a thing as specialization. Not everyone at the company has to be able to do every job.