Just like the FDA reviews drugs for safety and efficacy, and just like your insurer reviews drugs for price, national health boards review drugs for safety, efficacy, and price.
Sometimes, the boards want to wait and see if the drug is actually effective in clinical use.
Sometimes the boards want to wait and see if the drug is actually safe in clinical use.
Sometimes, that equation does not swing in the drug's favour. If a drug is $10,000/year, compared to a $500/year, but provides someone taking it for 10 years, on average, with a month's extra life, it would be foolish to spend $100,000 on the better drug - if for that money, you can buy more than a month of life for other people, with another drug, or with surgeries, or better screenings, etc, etc.
Likewise, if a drug improves quality of life for someone, how do weigh that against saving someone's life? There's a limited medical budget, and there's some ethical calculus that you plug the numbers in, and determine which of those options is a better use of scarce resources. But in order to do that, you actually need to get the numbers. Clinical trials, in themselves, don't give all of those answers.
The FDA differs from the FAA, in that the world does not consider it the sole gatekeeper of medical efficacy, safety, and cost.
What will not solve this problem, is the drug manufacturer spending half a billion dollars on taking doctors, medical directors, and politicians on all-expense paid junkets to the Carribean. You're not going to get better awareness from this, you're going to get more corruption, and more expensive drugs. (The $500/year alternative can't compete with the $100,000/year alternative in this sense - as the manufacturer of the latter can trivially out-bribe the former.)