There are dialects that are associated with wealth and education that are still discouraged in the business world for various practical reasons. It certainly is

There are dialects that are associated with wealth and education that are still discouraged in the business world for various practical reasons. It certainly is a penalty to have a dialect and many educated parents will try to school their kids to speak differently. Not as a replacement, but as an alternative. I doubt you can remove the preference due to the advantages. There is a force for consolidation, just as there is with English as a whole for example.