Split or go back?
So, I have played a lot of games where my team gets caught or they start a teamfight 4v5 or something like that and I'm sitting watching things play out and I have a decision to make: 1) Go back and try to defend my towers 1v5, where I will most likely die trying 2) Go push a lane and try to get a tower. I've been flamed at for choosing the latter but I've been flamed for making correct decisions before so I'd like to know what the best decision is. I'm an elise main so frame it in the context of playing elise.