That's totally non-standard. Nobody else means that by the term. What if you are winning by 100 points? The value of filling a dame is then 100 points?!? If that is your definition, then no wonder we disagree.
At least it kind of makes sense if you subtract the value of passing, making the value of filling a dame one point.
Tyler Cowen argues in a TED talk (~15 min) that stories pervade our mental lives. He thinks they are a major source of cognitive biases and, on the margin, we should be more suspicious of them - especially simple stories. Here's an interesting quote about the meta-level: