Free market would automatically cause a big influx of money.
A "big influx of money from all countries in the world" - if from governments themselves and not individual citizens buying - would in fact be a proof point against its claimed effectiveness, if forcing the otherwise free market (via easily-commonly captured political-government-institutional channels) is what's required to drive funding towards it, e.g. regulatory capture to provide profits when they may not actually be deserved-warranted - say by trying to get approval for a fraudulently approved product, e.g. "... the 26 pharmaceutical companies paid some $33 billion in fines during the 13-year period. The top 11 alone accounted for $28.8 billion" - https://www.pharmaceuticalprocessingworld.com/gsk-pfizer-and...
And arguably this is just the tip of the iceberg and the industry hasn't been held accountable for most of their fraud since the industrial complex formed.
This isn't just a problem with the pharmaceutical industry but with clearly corrupt-captured regulators like the FDA - who allowed this fraud to happen to begin with, missing or not checking into whatever lies were presented for the fraud to occur and the products to make it to market.
And that's why headlines like "Moderna's mRNA cancer vaccine works better than expected" should be taken with extreme skepticism.