Well then,as with most Scrambles you havn't played by the real rules of golf so remind me what's the issue again? 

I did intervene on the course by telling them on the 6th hole. Have I penalised them and taken away their first prize? No, because I cannot guarantee that the second or third placed teams didn't do the same.
Errr...quite easily, I would have thought. If you see one of your group break the rules in a competition, you penalise them. You can hardly let them off on the grounds that some other people might have done the same thing without being penalised. How would anyone ever be penalised for anything in that case?!Unless you can get someone to watch every group how can you just penalise those you saw and not the others.
Like some else said a scramble breaks all the normal rules of golf, as it played as a team, players ask each other what club they have hit, if they are short off the green or long.
Like some else said a scramble breaks all the normal rules of golf, as it played as a team, players ask each other what club they have hit, if they are short off the green or long.