To be fair, I am not sure everybody who would go through traffic lights or mount the pavement in front of a wheelchair when bike riding automatically does carry on with their idiotic ways when they are driving a car. I think there is a tendency for people to think that traffic rules don't apply in the same way if you are bike riding. When you take your driving licence the rules are drummed into you so very strongly, and I do think most people do actually feel a basic respect for them.
This is the only way I can find to account for the fact that I see cyclists going through red traffic lights at least twice a week, motorists perhaps twice a year- yet there are far more motorists than cyclists around where I live.
My db's who live in Sweden (similar to Denmark) report that they have the same problem.
I think part of the problem is the way cycling is sold to potential cyclists: it is promoted as a quicker way of getting through traffic, a way of being more mobile and weaving your way through the queues. This does not promote an attitude of waiting patiently at traffic lights like everybody else.
I should point out that I haven't got an axe to grind: I don't drive a car and never have, though I used to ride a bike.