I hesitate to have DBA's interpret data. Particularly data in fields such as medical and finance. I have a difficult enough time understanding how to store, manipulate, backup data, and report against data. One can't be all things to all people.

There is also the need for separation of responsibilities. It is a bad idea to have the data caretakers also be the data interpreters. I think it would be bad, and maybe against the law, to have the same person perform both roles in a financial institution.