I hog the right lane on a motorway, sue me
If I am driving on the M50 and for a long time, I'm staying in the right lane. If I am on the M2 or M3 etc then again, I am in the right lane. Here is my reason
If I stay in the left most lane and overtake every care that is driving to slow, then I will be in and out constantly. It's trivial for me to be going in and out constantly. So I instead stay in the right lane doing 120, while i pass many cars doing 80-110. Every few second I'll be passing them while I sail along.
If someone then behind me comes up speeding (because ill do doing 120) then I'll move into the left when I can, let them pass and go back into the right lane. It's way more effective.
EDIT:
The amount of retards on here that think that just because i do this one thing in a slightly wrong (but better) way think that any analogy that involves breaking rules in any other capacity is compatible. Retards of the highest order.