Where there are allocated seats (which is not the case in this story), why would anyone want to pay extra to board first? In many other situations, the more important, or higher ranked, the person the later they have take their seat. For example in the Navy, the most senior officer is the last to board a transport and the first to disembark. When there are state occasions (such as a Royal marriage), the "ordinary" people have to arrive first and sometimes be in their seats hours in advance, whereas the VIPs arrive at the last moment.
As a business, or first class, traveller, which would you prefer - staying longer in the first/business class lounge and boarding last or boarding first and having to sit on the plane for longer before it departs?