There is a great deal of overlap and integration between government agencies, private corporations including Big Pharm and Big Ag and Big Whatever, university and other research institutions, and the scientist and others who work in these places.
This topic is addressed in the latest episode of the science podcast Ikonokast, which also includes details about a recent minor scandal involving GMO research and squirrels. And maybe bears.
Check it out: Episode 22 – Ethics, Conflict of Interest, and Science