What is the point of the movie MoneyBall?

I just got home from watching it and I am feeling a bit ticked off. I understand what the movie was about, but I am having a hard time figuring what our reaction is supposed to be.

I knew the basic plot before I entered the theater, since it is in every review. Brad Pitt as Billy Bean, general manager of the low budget Oakland Athletics, creates a winning ball club by finding cast off players who play an unglamorous game of attrition of drawing walks, wearing down pitchers by throwing extra pitches and not taking chances by trying to steal bases. The choice of this type of player is based on statistical analysis. The picture does not mention it, but statistical analysis of baseball has become its own field, sabermetrics. Bean is shown to trade and hire the players as if they are so many chess board pieces.

So what are we supposed to get excited about? The camera angles shifts constantly, with no shot lasting more than 30 seconds, having the effect of distancing us from the characters. I found it really hard to feel sympathetic toward Pitt’s character. Bean says that he is in the game to get it played right, which is apparently to treat everyone like a statistic. The picture implies at the end that other clubs now apply the same techniques pioneered in Oakland, so the A’s are back to having losing records. I come back to my original question. How are we supposed to react?