Obedience to the revealed will of God is the standard by which each of us is ultimately judged. How can He do this? God is not unfair. If you have little information and little faith that is what you are expected to utilize in your search for God. To whom more is given, more is expected.
It is God’s mercy that men and nations face judgment now. It may be that it saves them from a more disastrous fate after death. Also, judgment interrupts the evil that is being poured on a luckless citizenry.