A good player (say, Ninja) routinely plays an entire 20 minute game, eliminating maybe a dozen or so other players themselves out of the roughly 100 starting. So for them this 20 minutes is spent doing what they enjoy, stalking and killing their opponents. On a run, Ninja might do this three times in an hour. A whole hour of being awesome.

A bad player like me usually is eliminated much earlier in the game, maybe they spend that time frantically hiding from superior players, or they lay traps, or the stay on the fringes of the island away from contact, sooner or later though they get killed... and then they immediately jump into a _different game_ and start over. In an hour they might play 10 games, or even thirty if they're very, very bad or just love starting in the most conflicted zones and often die in the opening seconds.

The rest of the game design exists to reinforce this basic idea, for example there's a "zone" or "storm" mechanism forcing players into a gradually smaller (but random) part of the map as the game progresses to keep them in conflict so that they get eliminated. Players deliberately aren't named while they're alive, you are sniping some chick in a rabbit suit, not LiverpoolFCFan, and she won't be back in the same game, so you don't learn anything re-usable.

The result of this trick of perspective is that more people are having fun, not just the most skilled players.