Lane Loitering

I'm not sure about other countries but here in Great Britain it is illegal to loiter in the overtaking lanes on the motorway(highway). The first lane you come into on the left is Lane 1 and you're required to stay in that lane unless you're overtaking another vehicle or the lanes are bifurcating into different roads or if a lane is closed. If you overtake a car then you're required to return to lane 1 afterwards.  

As far as I know, lane loitering is one of the stipulations of the Dangerous Driving Law and people that loiter in the overtaking lanes(2 and 3) can receive £100 fine and 3 penalty points on their driving license. A lot of people don't know that it is illegal to loiter in the overtaking lanes and they don't know that sanctions can be placed on them; I know that because when a police car appears, some cars move to the first lane and others continue to loiter in the overtaking lanes. I see it for myself.  

Loitering in the overtaking lanes for too long makes the road more dangerous because if their car stops working, they may not be able to reach the hard shoulder on time and can cause a crash. I find it difficult because I'm required to overtake on the right hand side of the vehicle and cars that are going too fast use that 3rd lane as well and they get annoyed because I'm overtaking a car that is in lane 2. What can I do?