Not sure how you are qualifying "often" here? I've worked on both the industry and government side of this equation and the vast majority of companies I've worked for or with are not receiving grants for research & development. Many of the grants given out are for procurement of the drug/device to government agencies (e.g., military, VA, etc) at a fixed rate and therefore cover generic branding costs, etc. so that the "more expensive" version is reserved for higher paying customers (spoiler: it's the same product). It's shady AF, but that's where most of the $ goes from these grants.
To be fair, I haven't worked for Pfizer, J&J, GSK etc. The big boys are definitely getting some kick backs, but they also deal in so many divisions that the grants are a drop in the bucket compared to profits. The bigger issue is that these are the same companies that are buying up the IP from the smaller players and burying them so that they don't compete with their money makers. IMHO, it should be illegal to sit on a patent for some period of time without commercializing or letting the IP go... So many useful medicines never see the light of day because they've already invested millions into an inferior product. Competition is good for the consumer, but in some of these arenas it's a virtual monopoly. What do we expect to happen ?🤷♀️