Assuming the rankings are correct, in the 1400 range it's doable to beat someone with 1600, maybe 1800 elo (400 points difference), but someone over 2000 is on a whole different league than someone with 1600, night and day. Furthermore, someone with 2200 shits on some random 2000 elo player (200 points difference "only") and should practically never lose to someone with 1800 (400 points), in his life and no more how piss drunk he might be

What you are asking is hitsu to beat strenx or spartie, which is not going to happen, but hitsu can indeed beat dopey.

LoL is a good example on this, lol. That game has a million divisions, 27 actually. The first 20 are quite easy, but in the last 4 the game is way different. That's diamond 2 and over. In those four there are less players than in the previous four than it.
Any random idiot can get to 1800 elo, which is about diamond 5 maybe, but getting to 2000 requires being good at it (diamond 2). Then, in the best two divisions (challenger and master - above diamond) there are very clear skill differences between someone that's ranked top200 (challenger tier) and top 1000 or whatever it is now (master tier / diamond 1), and among the top200 the top50 are on a whole different than the top200 player.

The same happens with quake: the best 50 in the world (2198 elo) are on a whole different level than those in the top100 (2052), and so are the top100 to the top200. The top20 in quake destroy everyone below too.