To me it’s very simple:
In any given net match (1v1), the player with less variance in their score will win more often - this is almost always the lower handicap. The handicap system favours lower handicaps in match play. This has been documented countless times despite the anecdotal objections from lower handicap players.
However, In a large field net tournament, things change, The winner is likely to be someone with larger variance in scoring (usually high handicappers). Imagine a net tournament with a million players. Even if everyone’s handicap is legit, the winner will almost certainly be a high handicap who shoots the round of their life and posts net 15-under or something ridiculous like that. A high handicapper is far more likely to shoot exceptional scores than a low handicapper.
The flip side is that the worst net score in a tournament is very likely to be a high handicapper as well, but there’s no real difference between finishing middle of the pack or last in an amateur events.