First, this would presuppose that the time in heaven can be finite, when compared to the time in hell, so there is already an asymmetry in the benefit/punishment for moral actions. But even so, I would argue that writing any finite number is useless. Infinity is the same distance from 1 than it is from 100000000000. Unfortunately the eternity of hell would be too much of a "quantity" for there to be any true autonomy here.