Look at it this way, and hopefully your rookie skills can understand: if are the Godfather and you die tomorrow, Town wins and it is all thanks to your attack on me. If you aren't the Godfather and are, in fact, just an idiotic Town member trying to strut his stuff endgame because he's been pointless all along, then you have handed victory over to the Mafia and you can take 100% of the blame.

Simple, really. You lose no matter what.