Ranked LP gains and losses

I'm not too fond of how ranked works at the moment. Very rarely do I get an engaging match, with teammates and opponents who match their supposed skill level. In fact, i have never had a ranked game where this case. Every single ranked game I have played is a stomp in either direction. Unfortunately this is never because my team was better than the opponents, It is usually because there are 1 or 2 rubbish players on their team who fed like crazy. I was just jungling in a game where the Janna and Jinx fed Draven 3 kills at 6 minutes. I tried to help and we got the kill. Whilst i'm helping on other lanes, they feed him more kills. I could not have camped their lane, because the Darius was struggling against mundo top. I had to help him out also. Of course, we lost, and I lose 32 LP. That took me 2 games to aquire. What I don't understand, is how these Players are in Silver IV and III, when they were so utterly abysmal. If you gained LP based on your individual score, and maybe honours or something similar, then It would be impossible for people to be 'carried' by someone else in DuoQueue. It would also mean that better players would not be hindered by their rubbish teammates, and stuck in a low division. You can make the argument, that it would not promote teamplay, which is what lol is all about. I agree with you, however, I'm not suggesting you remove LP gains for wins either, also, you could have a system in which Assists are as benificial as kills. I was wondering if you guys had any ideas for improving the Ranked system, and If you have had any similar experiences to myself.