That's because they don't. There isn't one player I can think of in the last 10 years where their box scores are so out of sync with there actual impact and ability; this Celtics system and personal have been the perfect stat-inflater for Rondo, they've made him out to be a player that he really isn't.
The Celtics system is terrible for Rondo. He's never played with someone who could run the break with him.