I don't think anyone is allowed to ignore guidelines. When you know the rules well, you are allowed to bend and break them when it makes sense. But people as a group are often not thoughtful so we have to apply rules to everyone even though a few individuals don't need rules applied to the, because they know what they're doing and generally don't cause trouble.
If we leave it up the masses to be on the honor system then the problem would be much larger. Everyone thinks they're awesome enough to bend the rules when they aren't. It always seems like the people who suck the most are the ones who believe they're the most skilled too. Why is that?
I'm not saying that's a good thing, mind you.