" And above all, what a strange attitude that actually is, when we no longer find Christian service worthwhile if the denarius of salvation may be obtained even without it! It seems as if we want to be rewarded, not just with our own salvation, but most especially with other people's damnation - just like the workers hired in the first hour. That is very human, but the Lord's parable is particularly meant to make us quite aware of how profoundly un-Christian it is at the same time. Anyone who looks on the loss of salvation for others as the condition, as it were, on which he serves Christ will in the end only be able to turn away grumbling, because THAT kind of reward is contrary to the loving-kindness of God.

-What It Means To Be A Christian "

― Benedict XVI