You are correct about Satan being the god of this system of things. If people would just stop and think for a minute, they would realize that this world is not the way God wants it to be. Because Adam and Eve rebelled against God, and wanted to follow Satan instead of God, He has turned the rule of the world over to Satan, but only for a certain period of time, and that time is almost over.
Just before Jesus went back to heaven his disciples came to him and asked; what will be the sign that we would see just before you come back to earth? Jesus gave them many things that would happen, then he told them what would be happening just before he returns to earth, all mentioned at Matthew 24, Mark 13, and Luke 21. Other Bible writers wrote things to watch for, 2Timothy 3:1-7, 2Peter 3:1-7, Romans 1:18-32.
We are not far from The Great Tribulation, mentioned at Revelation 7:14. We should be able to see this clearly, because there are many things written in the Holy Bible to warn us. Even though all the thing mentioned have been seen, to some extent, the amount of dishonesty, immorality, lack of love for neighbor, or people in other countries who are killed, with the pretext that they might be a danger to our country some day, when the real reason is; we want their natural resources. The wickedness of this generation is unpresidented, so we have no reason not to recognize that this is the generation that will see Jesus return to earth. If we do not KNOW God and are not following Jesus when he returns, we will be destroyed, so says the Bible, 2Thessalonians 1:6-10.