Well, it sort of does. Imagine your doing 100 in the left lane, as does the car in front of you and the three cars in front of them. There’s a truck doing 80 in the middle lane some 500m away. All of you are going to pass it. Now a sixth car starts tailgating behind the last in line and because there’s left a big safety gap he’s overtaking on the right.

I was the last in line, going at the exact same speed as the cars in front of me, just leaving enough space. Why would I switch lanes?

Plus it was leading to an exit anyway…

You shouldn't overtake on the right.