If philosophers are the only discipline that notice their biases we'd have a lot more problems than we have now. I thought the entire basis for our use of the scientific method was the absolute pursuit of the truth. Like the answer to a math equation. Theories are brought to light and invited outside scrutiny, regardless of social context, is given consideration. The rules of engagement force the theorist to remove any biases when examining any subject, lest you have your ass handed to you by the social context you failed to see before uttering your theory. One good shellacking from an informed peer having a different social context in public I bet that bias gets considered or you take a seat.