This hype of Ian Book breaking the total wins record was silly. It's a nice thing for him to have, and it should mean something. But, to imply that he's a better QB than the guys that he passed? No. It means that he was the starter in a lot of games. And it means that he played on pretty good teams, that had more talent than most of the teams they played. Both are good things to recognize, but it shouldn't be used as a number to compare QBs.
It's almost as silly as a baseball pitcher's W/L record. While they both are the most important positions on the field, there are simply too many other factors that go into a win or loss.