If you’re in front, you get first dibs at any opportunity. If you don’t take it, it’s fair enough for somebody else to.
Ah well here’s a few issues.
1) What you think of as ‘an opportunity’ may not be the same as what I do. Just because you are prepared to cut it close DOES NOT give you the right to queue jump. Unless I’ve ignored miles of clear road, which in my case I won’t have done.
2) Often I am ready to overtake, and I can’t, because someone is already in the process of overtaking me. This boils my piss far more.
3) If I’m next in line to pass, and you overtake ME in the queue, then pull in infront of me, I’m no longer next in line. So next time there’s space for one car to go, you go and I’m left behind, even though it was legitimately my turn. How can you justify this?