Voice can often be taught. Radio personalities and announcers often receive professional training in voice and it does not take that long. Don’t apologize for talking about her voice. You are right to observe that these things can make a difference. Remember the efforts of Professor Henry Higgins with Liza the Cockney Flower Girl in My Fair Lady? It IS doable.
I hope Sarah does something. We need strong women like her and Bachmann. Lib weenie women whiners turn me off.