Grappler Baki (TV) Episode 23 Discussion

Does anyone find it kind of strange the way Kureha is narratively portrayed as the bad guy, even though he had just saved Doppo's life? The girl in a wheelchair that was suddenly thrust in front of Baki before his match with Kureha relayed a short story of all the patients that Kureha had treated, many of them not having received any sort of benefit from his treatment. She says that he follows no institutionalized medical protocol, and is basically no more than an armchair maverick alternative medicine guy. But didn't he literally just walk in the room where Doppo was being treated, cloaked in sweat from his pre-match warmup, and nonchalantly proceed to revive an otherwise dead Doppo? Whereas an experienced team of doctors right next to him failed to do so? And on top of that, Baki is now furious with him, even though Baki single handedly witnessed Doppo's defeat and was traumatized by it so much that it put him into a stupor? What is this half-baked vigilantism? If Kureha is supposed to be a corrupt quack, how did he just save Doppo's life?