It's about legality.
Let me say that again, we signed a legal document over 70 year ago, co-written by a Canadian that OBLIGATES us to provide "medical care" as a human right.
Section 1, Article 25 lays it out pretty clearly, "Everyone has the right to a standard of living adequate for the health and well-being of himself and of his family, including food, clothing, housing and medical care and necessary social services, and the right to security in the event of unemployment, sickness, disability, widowhood, old age or other lack of livelihood in circumstances beyond his control." Emphasis mine.
Yet, we treat access to medication as a privilege. Like the US treats all health care.
We can do better.