the rank system is a laughable since season 5. 2ndly there is no way to determine rank by individual performance in a team based game. the only way you can use a individual rank system is a 1 vs 1 game
typically in most cases you are placed with and against people of similar skill levels and you have to be better then that skill level on a consistent basis to climb. If you arent you will stay where you are. but if you win on a consistent basis you slowly climb cuz at some point your elo/mmr rewards you more for wins and less for a loss allowing you to gain the LP to move up.
and as you climb you are faced with players of higher skill level then what you use to play til you cant climb no more (this is your elo/elo hell ) and that artificial 50% win rate people thinks RIOT enforces. which is a lie cuz why do the same great players climb into D1, Masters and Challenger and all having above a 50% win rate most of the time ?
and finally RANK is a system of riot getting you addicted to the game. you play rank to prove your worth, you climb a bit get a lil reward, you wanna be better, and play more. buy the next champ/skin , play more etc , watch more league content, streamers, etc , pay for coaching , but no matter what you do you wont ever be happy with the game as long as you let your rank determine your happiness and enjoyment of the game.
its like the carrot and stick metaphor. they keep dangling a higher rank/rewards etc to get you to keep playing and becoming addicted to their game.
why do you think so many people hate the game, rant and rave in post on the boards, reddit ,etc but cant seem to quit a game they clearly arent enjoying?
but in the end your rank means nothing , and those who think it does really needs to look at life in general. 2ndly for all those wanna be ESPORTS PROs only .001% ever get to that spot so you are better off taking your life savings and buying lotto tickets