I know someone like that. You do need to do the match. You need that internship/transitional year but then you can quit and work as a doc, legally. This guy asks for about $5/hr less than board certified FM docs at a doc in a box, but never has trouble finding a job. I guess he can't take some kinds of insurance working by himself.
I can't confirm this, but from the dodgy way this part of his life is written about, I think Andrew Weill did that--internship year and then out. His wiki said he went to SF *for a year* for his residency. I think he got the letters and then peaced out to focus on herbs and alternative medicine, which seems to have turned out more or less just fine.
Another guy I know went through Harvard and UCSD, got the letters, never did another lick of medicine, and now makes his living calling himself *Dr.* [smith?], hosting inspirational PUA conference calls, playing professional poker, and wearing fedoras. But if you're into marketing sleazy self-help articles via HuffPo, I say don't let anything stop you. The world is your fedora.