Riot games are business, not sport as they want us to believe

Riot games is a scam company that create rigged games and cognitively enslave their players base using propaganda, deny, misinformation and astroturfing.

Riot games make appears their games like they are fair and competitive sport when they are not. They are rigged at every level of design to manipulate players decisions, behavior and emotions to make them addict and chase indefinitely an artificial rank.
In addition they are also manipulated to maximize their spending via skins, smurf accounts, boost and scripts that are sold by riot themselves.

Riot purposely boost or curbs players performance by modifying in game mechanics in real time and by rigging matchmaking, to maximize engagement and spending.
Riot goal is to keep people playing as long as possible because if they quit the game, they can no longer consume. Riot therefore artificially control everyone's engagement via matchmaking and progression by rigging the games. They infer and measure each player's individual play style and skill to create games with the desired outcome to maximize engagement and spend. This is why you can find players of all skill levels at all ranks, as the system escalates/blocks them to keep them engaged, and it can easily create unfair matches to control everyone's progress and engagement. For the vast majority of players, the game has an interest in blocking them because if they reach their rank goal they will most likely leave the game permanently.

High ranks are totally artificials for pros and streamers alike and to make it look like a very skillful game while above a certain threshold it's mostly a game of chance.

The "high elo" is the advertisement of the game. The pros and the streamers are the showcase of the game to show that "high elo" exists, that it is possible to achieve it and that the game has a high skill cap.

These are real practices of the gaming industry, well beyond just EOMM.
https://www.reddit.com/r/Games/comments/znpaau/i_worked_in_the_mobile_industry_for_10_years_loot/

https://www.reddit.com/r/RIOTxGAMESxARExRIGGED/comments/161aawa/riot_games_are_rigged/