"How would medicine possibly help the 'underprivileged' without socialist, nationalized healthcare?" Dr. Josh Umbehr, from Kansas, has a demonstrable and tested solution to just such a question. A thorough but simple exploration of his model of free (in the liberty sense, not monetary sense, but it's pretty damn close to no-cost) medicine recently appeared in Tom Woods Show Episode 481.
A project as simple and ambitious as Atlas MD is going to take some time to gain momentum, but the numbers recounting his success don't lie. His primary project is upholding the Hippocratic Oath while his secondary project is to encourage other physicians to do the same.
If people become more aware of this revolutionary approach of "charge a reasonable price and allow the market to do it's job" and ask for it, medicine may become a respectable career choice by the end of my lifetime.
AtlasMD has a podcast feed, blog, and a page oriented at helping other doctors join the free market. I strongly recommend that you listen to the podcast episode, and then talk to your primary care physician about it (and maybe ask about bitcoin, as well; my doctor takes it, and so should yours).