Rank system should change!

Ok! Since this game has clearly getting a lot of my precious time, I've decided to express what I'm thinking currently about the way Rank system works or should work in the future.

We have all experienced the so called "feeders" in our Ranked queue teams. We have also been seeing people going 20-3-5 which does not really reflects their current rank position Boosters are not something imaginary, in fact there is a big percent of games which your are losing because of boosters winning. And here is what really got me on my nerves at this point. Why would you gain League Points ONLY by winning games? Why your performance in the game would not be taken seriously and gain you some points too? What about your assists, ward placing, roaming , helping , informing your team, ping alert helping and all of those tools that a summoner has in his game play should be taken into consideration when the game calculates the points that a summoner should gain at the current game.

Here's an example: Bot lane is even till late game same as jungle, the top lane (lets say ) goes 0-10-0 and the all the other team continues to cooperate in the game in order to win. Finally the players in the team (EXCEPT ) manage to win the game just because they cooperated very well at this point, but this little got himself a free win because the other players just know how to co-operate. The funny part is that just got himself 18-20 league points just like the other players in the team (Lets say we are in Silver 3) performing really really bad while his team managed to carry him throughout the whole game. Is that fair? Does that deserves the whole 20 LP like his team deserves them? I don't think so....

Lets give you another example: Your team did not managed to win a game, which is usual sometimes, BUT the performance of some players in the team wayyyy better than others. e.g. top lane again , he goes 0-12-0 this time at 20 mins which is clearly unacceptable while his team is struggling to keep the lane even, prevent their ganks, ward the hot spots, secure drake and prevent losing fights at bot side and finally losing this game because the enemy top laner just got fed and started roaming. All the team loses 18-20 LP again just because this little fed the top laner. And I'm asking you again: IS THAT FAIR? Why would I lose 20 LP just because some of my teammates are not really performing good at the game?

Long story short , the game would be much more awesome if you would gain or losing LP depending on your performance, warding , assisting , preventing ganks , alerting your teammates. Also, imagine if the game would not let you play a champion in the Rank queue unless u have 3 levels of mastery in that champion. Do you understand where I'm going with this? I would love to hear Riots feedback about this and don't be afraid to comment me about what I'm saying wrong. Thank you and good luck on the rift.