Being the true hero

So I just got out of a game that I was the real hero of. We had a player in champ select who got auto filled to a role and didn't get their champion so they said they were going to feed, we got into the game first thing he does is tell enemy mid laner to buy dark seal because he's going to run it down mid. So being the genius that I am, I decide to sit in base and take the L for the team by forcing a remake, thus saving my entire team from wasted time. The only thing I regret is that this player probably won't be punished now despite his confession to what he was doing(he ended 0/3/0 by 3 minutes), and that I now have leavebuster on me.