Didn't Lance do something very similar on top of the Alpe, or was it Ventoux, with Pantani? Poeple would have bet on the stage outcome, and Lance gifted it. The whole 'match' (race) result didn't change, just that particular 'frame' (stage).
If someone is going to 'gift' a stage to a team-mate or rival to say thanks or pocket £300k, no difference.