Ray C. Stedman on Romans 1:
Knowing that harm is coming from their wickedness, nevertheless they attempt to spread it more fully. They invade the field of education; they dominate the media; they seek legal status for their wickedness and defy all attempts at control. As you can well recognize, this is what is going on today.
Thus the Apostle Paul traces the deepening darkness of his own day. And yet it is ours as well. Though this is an honest record, it is also clear that God does not turn his back on man. This account is not a record of what God despises, and thus turns aside with contempt. Man is never treated here as an object of contempt, or as a worm. Rather, God’s concern underscores this whole passage. He is at work to try to bring men to their senses, to wake up a civilization as to what is going on in its midst, and to show it how desperately it is in need of deliverance — which can only come as a gift of righteousness from God’s hands.
You may ask, “Why does God give a civilization over to this kind of thing?” He does it because it is only when darkness prevails, and despair and violence are widespread, that men are ready to welcome the light. Remember Isaiah’s prediction? “They that dwell in darkness, upon them has the light shined. They that live in the land of deep darkness, unto them a great light has shined,” (cf, Isa 9:2). In the 1st century, the world was sunk in the darkness of despair. Idolatry had penetrated the whole world; men had turned from the true God, whom they could have known. Hopelessness and rank despair lay like a heavy blanket upon the earth.
~Expository Studies in Romans, from Guilt to Glory, Ray C. Stedman, http://raystedman.org/romans2/
Source and read more: http://www.ldolphin.org/collapsing.html