I don't know if that is correct about the 30 baht, but even if its true, it does not mean the program itself has not been compromised. I am being assured by a couple of Thai's who work in the system that it has. Anyhow you did not provide any information about when you accessed this free health care and what was involved...that's the issue...not the 30 baht.
There are totally conflicting stories about this situation on several forums and nobody seems to be able to authenticate any of it. If this is supposed to be an information exchange, one liners won't really accomplish much I'm afraid.
Again, if its all free and wonderful, why are the Thai's who can afford it climbing over each other to buy medical insurance??