Politicians always push for a scientific consensus they can act on, whether it's there or not.
I'd rather think people vote based on what it was that a politician decided, and whether that is in line with their beliefs. Beliefs that may or may not come from scientific consensus
Did you ever see a politician run seriously on "I didn't get anything done?"
Little people select politicians by their feelings about the information the media presents about them. Big people look at the politician will make or cost them money. They do this by acting, and they often want "science" to validate and cover for them as being wise.