This question assesses your professionalism and how well you can objectively present your opinion while gauging the depth of your knowledge on this subject. What holds value here is how well you can weigh every side of this nuanced subject, i.e. how much or how little health insurance providers pay out to health care providers and institutions, which is often much lower than the contractual rate. This should be weighed against sustainable business practices, how much patients pay (premiums, copay, coinsurance, and deductibles), and who benefits most. It is fine to have your own opinion as long as it is based on well-informed facts. They want a glimpse of your critical thinking skills and ability to be diplomatic when addressing hot topics. It wouldn't hurt to appeal to both sides of the argument, but make sure you come across as educated in your approach.