A lot of people feel that God is not fair to them. What are we to believe? I think the parable The Laborers in the Vineyard from Matthew 20 provides some clues. In the story the workers hired in the last hour got paid as much as all the other workers hired earlier, including the first group who had worked a full day. When the first group complained, the owner of the vineyard responded: "I do you no injustice. You agreed on the usual wage, did you not? Take your pay and go home. I intend to give this man who was hired last the same pay as you. I am free to do as I please with my money, am I not? Or are you envious because I am generous?" Also, I recall Jesus telling one Apostle to mind his own business and not be nosy about what's going to happen to the other Apostles.
I can conclude that God wants us to respond to him alone, letting him do whatever he wishes. Envy is, of course, a sin. If you mind other people's affairs, then right away you see that some are better-looking, taller, have better health, were born into a wealthier family,... ~ how can God ever be fair?! If there's no life after death, then you have a point. Since this is not the case, it makes no difference what your life is like if you end up in heaven. View it this way: you trade this life, fair or unfair, for eternal life ~ there's nothing unfair about that. If you knew how happy you'd be in heaven, you wouldn't mind spending a million "unfair" years on this earth.