It is not necessary to win, but most of the time, you have to if you want to beat the ones cheating. Its part of the game, see what you can get away with. Has every driver ever stayed under the speed limit 100% of the time? The answer is no, that does not make them a criminal. But, it sound impressive to say you never went over the speed limit. Just Wink a little when you say it, WINK WINK