Don't you think that the oil company profits are a vested interest in climate change denial? I mean, do you really think that scientists need to resort to fake science in order to get a grant? Fake or incorrect science gets flushed out rather quickly and thoroughly -- see cold fusion.
Climate science hardly stands alone -- and you cannot remove it any more than you can remove evolution or atomic theory from the body of scientific knowledge.
Here's a solid indictment of the scientists-are-in-it-for-the-money and other denial conspiracy theories:
Global warming conspiracy theory - Wikipedia, the free encyclopedia
Climate change denial - Wikipedia, the free encyclopedia