Dear Riot, Please fix the player ratings.

Alright, I am a Jax jungle main (unranked because I'm fairly new and don't have level 30 yet), and I just had a game where I was Jax, as jungle, on a team with a Teemo mid, a Vayne ADC, a Taric support, and a Gnar top lane. We were against a Braum support, Kennen ADC, Lee Sin jungle, Fizz mid, and Gragas top. Now, you'd think that even on a character as broken as Jax (at least the way I play him), with that lineup, I would be a not very major player. The game started off kind of even, but I kept getting successful mid-lane ganks, and their jungle didn't have smite, so before long I had a 3 level lead on poor Lee Sin and then I realized I was 7/1. I decided I was doing well enough to build full damage, and ended with a Stalker's Blade- Bloodrazor, Mobility Boots, Luden's, PD, Statikk Shiv, and Morellonomicon (not bought in that order). I ended the game 32/5/4 I had over a third of the total kills in the game. The entire rest of my team only had 2 more kills than me. I dealt the most champion damage in the game, clocking in at 55k. I didn't really feel the need to get objectives because before the 20 minute mark everyone on my team was fed, so I only killed one dragon, and got greedy, getting myself killed and handing a dragon over to them on my attempt at a second dragon. But still. That is one misplay, I think there was one other where I got greedy and dove an inhib turret to try to kill Fizz. Thought my burst would be enough and then I could q out. I didn't get an S. 32/5/4 and an A+ is all I get? ALL I WANT IS AN S! I'm sure other people have had similar experiences to this. I swear this game is going to drive me insane.