Just because I can't provide a link to validate my concern doesn't mean that the pharma industry is above board. A lot can be hidden in the merger and acquisition process.
In addition, the major pharmaceutical companies rarely do their own R&D and new drugs are being created at small companies that don't typically receive much press coverage, particularly when it results in those companies going bankrupt.
Only about 20% of pharmaceuticals generate more than $1 billion in sales. Some of the drugs may be inferior or have little benefit over less expensive options. Other drugs never become profitable because of marketing and incentives for providers to prescribe other medications. Scientists frequently discover that some medications provide treatment for conditions that weren't originally envisioned and those potential treatments may not be discovered if they don't reach an adequate number of patients.
As long as both humans and money are involved in any industry, the possibility of malfeasance exist. If recognizing human nature is considered to be a conspiracy, then I'm guilty as charged.