Science doesn't exist by itself, it's created by people, and the people who run a lot of the science today lie all the time. Drugs companies, oil companies, and so on. You could say well that's not "true" science then, but it is, it gets published in the scientific journals, disregarding all bad science is just a "no true scotsman" argument. The fact is, science is neither good or bad inherently, it can definitely be bad and yes lie.