S rank

Now this is going to seem a little weird but I'm starting to think I'm getting undeserved S ranks by the truckload when I play Ryze.

I've gotten S and S- ranks in games where I was barely positive and now most recently ended a game 0-2-8 And still got S-... I was never involved in teamfights, I literally stayed toplane for the whole game, the only time I ever left the lane was to push 2 waves mid then I teleported back top.

Granted I ran my ward trinket dry at all times, I got the most farm out of anyone in the game (256) beating Illaoi by a mere 44 farm and the runner up was 50 lower than that, I didn't lose my turret until way passed the 20 min mark and shoved the lane in to lure the jungler to my lane When my allies wanted to set up for drag (Died once out of 5 ganks but they got two infernals for my trouble) I teleported minions into turrets and while I never killed Illaoi I gave her a couple slaps that she won't soon forget.

but other than that I really wasn't in a teamfight until bot and mid inhibs were down and the whole team just ran up to my lane and we just pushed through the 2nd tier to the nexus from there. I don't feel like I've really contributed that much to the team other than not feeding too much and farming hard (Not hard when you can dissolve a minion wave by sneezing at it)

But this isn't an isolated incident... I seem to get an S rank everytime I win as Ryze regardless of whether or not I carried... Am I just doing something right or is the bar really low?