solo que doesnt care if you are better than the players

Yep, same here. It's a combination of a broken system and eloboosters using mmr bots.... which i just explained here:

http://boards.na.leagueoflegends.com/en/c/miscellaneous/0l1jW9JY-how-do-players-go-on-such-big-winstreaks-without-smurfing

Just had my own series of the most incompetent feeders and surrenders I've played in a long time.