i just lost a game 100% because of server lag and no loss prevented?

I shit on my lane opponent and made it to 30 minutes with 7/0 deaths and 10 cs/min and even though my team was doing terribly and all got dominated, i managed to get some picks that led to a baron and then i flashed over the wall to kill their vayne and janna in one hit when suddenly i lagged out and had to dc for the entire baron buff and the enemies got the lead after because vayne is gay. Everyone in the game was lagging and i'm pissed as hell that i didnt get a loss prevented this is some bullshit when you 100% carry a game and are about to push to win riot shouldnt be able to fuck you over like this.