If thats the case then why bother having a rules official. Trial by TV everytime unless you are playing as an early starter in which case you'll never get found out as it won't be on film. Makes it an unfair playing field if the top players can get a retrospective penalty just because it was caught on camera and a guy going out first and making the same error will get away with it. Surely if a player asks for a ruling and the ref gives it, right or wrong then the player and the tour have to stick by it. The player isn't seeking to gain an advantage or cheat