Well it comes down to economics, not what anyone happens to think of it in terms of genuine interest. If you are a research organisation or charity then I doubt you'd refuse a donation of such proportions simply because you felt that it may not be from the heart based on some assumption that the entity is donating only because they have the means to do so.
The fact that there are donations to worthy causes is all that is really relevant. When a company says "We care about such and such and as such we are going to provide means for ongoing research" there will be people that believe that this is a genuine desire to improve humanity or quality of life in some way and there will be knockers who say 'It's just a tax dodge or publicity stunt'. It isn't really easy or practical to measure how genuine a corporate donation is so why bother trying to do so. If the community benefits from it then that is the important bit in my view.
