I'm not saying that most doctors do that, but I'm saying that having a huge financial incentive to do that kind of thing, creates an environment where the temptation is always there.
I know for a fact that the business aspect of healthcare does impact the availability of services, and the cost of healthcare. For example, one of the reasons we're expanding our diagnostic imaging facilities (not the sole reason, but it's one of the big ones), is because it can generate a lot of revenue relative to the cost. Think about it. You can charge people 500-1000 bucks a pop, there's very little risk to the patient's health, you reduce the cost of the medical liability insurance, you can do a patient every 30 minutes, and you only need a few staff.
I'm not saying it's right, but I'm saying that the business realities of health care have a HUGE impact on the end result patient care. Call me paranoid, but when we're talking of cancer bills that are running into the 1+ million dollar range like my mom's, you can't help but wonder.