You should realize how important money is in research today. The main job nowadays of principal investigators (PI) for research labs is to write applications for grants and fundings. These labs are usually underfunded and will accept any private funding if necessary. For example, the PI for my nutrition lab received funding from a Canadian agricultural company for a study on Canola oil. When the test results of the study were investigated (which I don't exactly recall), they were not in favour of Canola oil. The PI therefore "voluntarily" decided not to publish the results. I asked her why, and she said that if she published the results she would not be likely to ever receive funding from the company again.
My point is that a lot of research conducted today is funded by ulterior motives, be it political, private interest, or a company like Monsanto. I fully expected a company like Monsanto to be engaged in this behaviour. The days of pure/basic research are dead, especially with funding from the public sector drying up.
edit: oops i meant to write principal investigator (PI)