Candidly explain your career options, then assay your professor's response. If the professor is truly repulsed by the idea of your considering other career paths, then you might ask if his or her feelings are a response to larger economic forces, or you personally. Hopefully your professor will be open-minded enough to realize that his or her contempt for systemic realities should not condemn your own future well being. After all, you're just expanding your horizons, and that's what universities are meant to do in the first place. Let the accomplishment radiate.
Managers love enthusiastic, self-motivated, resourceful hires.
Your PhD is evidence that you have these qualities. Also, banish the notion that you need to justify your efforts. Many PhDs I've spoken to are haunted by this odd notion that their efforts are somehow shameful, and that they need absolution. Put the respect a PhD brings to work for you. Read about anthropology PhDs who are doing just that.