This is true on an important level, but also dangerous as sibling comments point out. There's no panacea for that tension, only the particular choices made and risks taken. Do you trust a particular "doctor", or will you take your chances with the "disease"?
The fact that this phrase sounds pithy and makes sense on a literal level tricks people into accepting the underlying message without critically analyzing the meaning of it. A classic Trojan horse of sorts.
That sentiment sure has a lot of potential for being a powerful thought terminating cliche for actual cults