That’s one of the biggest flaws in utilitarianism, there isn’t really an objective measure of goodness, therefore aspiring to maximize goodness is always flawed.

The alternative moral framework, the categorical imperative postulated by Kant is also flawed, as it’s presupposes a rational human, and most humans don’t act like rational beings.

In the end people are all personally responsible for their actions, and no higher power is keeping score.

If you want a good read on mortality and free will and how the dichotomy between right and wrong is flawed I would suggest this dialog by logician and philosopher Raymund Smullyan who brilliantly catches the flaws in the western boolean approach to mortality. It’s a long read, but quite worth it.