http://chem.tufts.edu/answersinscience/relativityofwrong.htm
This essay by Isaac Asimov illustrates how rather than just being wrong, theories get better over time as our evidence and experiences lead us to improve upon existing ideas. Parts of this remind me of Andy diSessa's "Knowledge in Pieces" theory of learning and how when someone's construction of knowledge doesn't match your own, it's helpful to think about the experiences they have had to logically get to where they are.