Trust is a basic need we all have when getting health care. It's a scientific fact that a trusting relationship with the care provider helps the healing process. We like to think all our doctors and nurses look out for us as their No. 1 and only concern. But we're learning that isn't always true. Conflicts of interest are pervasive in health care, with drug and medical device companies spending hundreds of millions of dollars each year to influence decisions by their doctor clients. And fee-for-service doctors can have their own conflicts when they profit financially from aggressive testing and treatment.