Hi Aysha,
I believe that no aspect of education is a waste. You can draw something out of everything you learn.
The pursuit of CDC is admirable. I'm sure that you want to be the best counselor possible, and part of that isn't just helping others stay clean, it is teaching them life skills and personal responsibility. Business Management would probably help you know how to teach financial responsibility to your patients. The more you know, the better you will be able to relate to your patients. And you never know what walk of life your patients will come from.
I'm excited for you.