Do you have any evidence to support your assertion that it is only 1%?
unless you spend the whole sortie doing wingovers and assuming we are talking about carrying pax from place to place, a wingover is probably only flown on arrival at the LS - given the amount of time the aircraft will spend in transit to earn it's crust, I don't think 1% is unrealistic.
My last comment was obviously hyperbolic, but if someone is prepared to break one rule, they will certainly be prepared to break another.
I don't think that is true either, there will be a sliding scale of acceptable behaviour, even in the worst cowboy, and everyone will have their own 'red-lines'.