Actually this a well known process known as regulatory capture.

Where the regulated industry ends up in some kind of symbiosis with its regulator, encouraging it to both grow and to keep competition at bay.

The conflict between the regulators and the regulated industry is largely a farce as they know they need each other.

Considering drug companies are always fighting with the FDA to do the bare minimum in terms of clinical studies, I would fathom to guess that your theory can't be supported with the existing evidence.