Champ ranking system too demanding

So i guess i am rewarded the same for being 1/1 and winning the game early as being 16/0 and having the enemy summoners /s? its bad enough that you sometimes have to luck out on getting two S-'s , but 3 S's under this schemata sounds like a Elo Hell prob. Just wondering , and im not sure it's just me who feels the ranking system is flawed. Like at least give the team who won by /s get a rank up because i felt robbed knowing i would have + it. And having to put essence in i already can't get w/o monies is depressing