As long as the therapist is good, I don't mind his/her having other jobs too. In my country it is very common for therapists to start out this way until they can make decent money as therapists - it's not materialism but a part of life.

On the other hand, I don't think I'd feel comfortable with a therapist who saw psychotherapy as a side-job. I think this is a profession that needs to be the main focus in orer to work, and the other stuff can be on the side. That's my view on it.