OK, maybe an example then. If the US would have only sent Phelps. They "knew" he was gonna win a few. The US would have had a 6 gold medals per athlete rank.
Another example is that the Netherlands would have only sent Pieter van den Hoogenband, Ankie van Grunsven, Inge de Bruijn and Leontien van Moorsel. Those were the dutch athletes that we assumed to get gold (in advance).
Of course it's not foolproof but most athletes sent to the olympics are NOT gold medal contenders. Well tehy contend for it, but they will know upfront that apart from something weird happening they don't have much chance. I guess on any event there would be at most 5 athletes with a reasonable chance of winning gold. This is known in advance with quite a high margin of accuracy.
You can of course imagine specific a counter example, but that does not negate the overlying principle in general.
But then noone is actually gonna implement a silly ranking like that (it's against the "competing is more important than winning" credo) so who cares

.