Following close to the car in front on a motorway is just plain dangerous. You place a great deal of trust in a person you do not know to not have a heart attack at the wheel, and/or be sober. When they lose control or slam the brakes on, it's likely you that will ram into the back of them and can end up in a worse situation than them. Anyone who is a firefighter, cop or ambulance driver will say the same.
The speed limit is the limit, not the target, and we are required to drive to the conditions. If someone wants to drive under the limit, yes they should not be in the inside lane, but it's not a crime to be there. I use the motorway a lot and I won't go in the inside lane if I'm not planning to drive at the speed limit, but there are still plenty of people who drive around me to go 120kph.
I should be a policeman. :sage: