It's worth distinguishing between R&D and science. In my experience in industry, R&D is very focused on product development. Sometimes on a little longer time horizon than engineering, but it's research to solve some problem that the company has. Sometimes that problem is also more broadly useful towards advancing human knowledge and understanding, but often it's not. At my last company, the R&D department focused entirely on 1) building algorithms for a specific product (nothing that advanced the state of the art, just applying well-established techniques to the company's particular hardware); and 2) helping market the company's products by letting them claim that they were clinically-proven. Would they ever publish anything that showed a result that wouldn't serve the company's interests? Of course not. Yes, I know there are some industrial labs that do more basic research, but I've never worked at one.

Also, industry isn't really doing that much to train the next generation of scientists.