If they quit the game, then no brains like you will report them for afk, and leaving.
I would gladly leave every game if it was going super bad if I could BUT nooooooooooooo i'd get reported if I do that.
So for those who want to FF, sadly they gotta waste their life playing another maybe 20 minutes for a lost cause cause typically if you're down by lots, you will lose more often than you can make a comeback and win. Funny, the last 3 games or so I played on Riven we were down almost by 10k gold, and came back to win... Just cause we were able to get the baron. The baron buff is such a big game changer, we were able to get it a 2nd time too.
So if you're able to get the baron, there is a chance to make a comeback.
Anyhow, off topic, sorry, keep the surrender vote, unless riot changes policies to let you quit without punishment, but that could be so annoying cause you can expect many people to just quit every match.