It would never be the case that a single researcher does some tests and reports them to the boss except in the very earliest stages of drug development. The "boss" in this situation would be another research scientist, far removed from business strategy.
Even then, success in a petri-dish doesn't mean much - it would be years of research with a large team to determine if it was safe and efficacious in human trials.
The idea that the pharma industry suppresses viable medicines because they are "too good" is just conspiracy theory.