Ah yes, the conspiracy theory that the pharmaceutical industry is deliberately hiding data to maximise their profits combined with medical schools around the world too stupid to train doctors properly raises its head again to explain a theory that runs counter to basic science. The other problem with your hypothesis is that the drug involved is good old thyroxine which I suspect has never been under any patent. It is a generic tablet that doesnt make the pharmaceutical companies diddly.
Sorry, dont buy it.