This principle is problematic, moreover - unacceptable. For the so-called “
greater good defense” the following must be true:
- The greater good must be a logical corollary of the suffering, and
- the amount of the suffering cannot be decreased without “sacrificing” the greater good.
So to say that some unimaginable good will be given in the afterlife cannot retroactively justify the
unnecessary (gratuitous) suffering here. The concept of “benevolence” cannot be reconciled with
any amount of unnecessary suffering. God could life anyone into the superb afterlife, if he wants to. The suffering here is not a logical prerequisite.
Now, let’s get some examples.
The scenario is hiking in the wilderness. One of the people is bitten by a poisonous snake on his pinkie. The other one is a doctor, but he does not have an antidote for the poison. The only way to save the life of the person is to chop off the bitten finger. Losing the finger is a small price to pay to prevent the death. It is “worth” the suffering.
The second scenario is almost the same, except the doctor has the necessary antidote. If he still insists on cutting off the finger to save the life, it cannot be condoned, because cutting off the finger is
is unnecessary when the application of the antidote is sufficient.
I hope you see the point. The “good” of living cannot justify the amputation if there is another solution without the suffering.
The pain and suffering must be logically necessary for the greater good to materialize.
The pain and suffering cannot be decreased without losing the greater good.
If you wish to insist that God is “benevolent”, the onus is you to provide a rational argument for ALL the suffering and substantiate that EVERY instance of suffering is necessary to achieve some greater good, and none of the suffering can be decreased without losing that greater good. And that is a “tall order”, to say the least.
There is another problem for you. To deal with sufferings is a question of technology. God is supposed to be omnipotent, which means that God able to anything except logically impossible states of affairs. So all the sufferings could be eliminated God, by simply “willing them away”. In other words, there can be no logically necessary sufferings.
So much for the “greater good defense”.