The Ranked System

So, I understand the ranked systems 'logic' is that eventually the amount of losses and wins you earn should even out to accurately display your skill. My problem is, why are wins/losses the only stat to dictate skill? For example if you look at my 2 previous ranked matches you can see I have 2 losses, the first involving a feeding bot lane, as well as the second. Both games I won my lane, got first tower and even successfully got my teammates turrets. Unfortunately though all that effort was for nothing as we inevitably lost the game due to my opponents being extremely fed.

I'm anticipating negative feedback for this, but, could there be a way to punish players less for losing a game which was essentially beyond his/her control? Maybe losing less LP? Maybe there could be an algorithm where the players of the losing team would have their stats compared, and from most influential to least would dictate lost LP? And as you gain ranks that algorithm would slowly balance back into what we have now?

I know ill be seeing responses such as 'well just carry', but my problem is ranked is designed to match you with players of equal skill, so if carrying is required then it begs the question of how accurately the system matches players.