This is the key part. Research funded by biased parties can produce valid research and results. There is the case of the physicist that was skeptical of global warming that was funded by the Koch brothers to study global warming. As a scientist, at a well known college for physics, he was skeptical but not blinded by money/politics. His research changed is mind completely.

But, like you said, he won't be hired again by two brothers that are wealthily through oil.