God's Goodness vs. Man's Evil

In Romans, Paul says that "as by one man's disobedience many were made sinners, so by the obedience of one many will be made righteous" (Rom. 5.19). Everyone seems to agree all people are sinners and that in the first part of the sentence, "many" means all people. Adam's disobedience caused all people to become sinners. However, the same word and the same construction is used in the second part of the sentence. Why do we say in this case that "many" is only some and not all people? Why was Adam's disobedience more powerful to make everyone a sinner than Jesus's obedience is to make everyone righteous?

In 1st Timothy, Paul said that God "will have all men to be saved and to come to the knowledge of the truth" (1 Tim. 2.4). Why do we not take this at face value? People say that just because God wills it, or prefers it, that doesn't mean it will happen. Why not? Why would God want something to happen but then not bring it about? Some will argue that some people won't be saved because they will not accept the salvation that God offers. If this is true, then those people's unholy and less than perfect will is going to overpower God's holy and perfect will. However, in Ephesians 1.11 Paul calls God "him who works all things according to the counsel of his own will." Apparently Paul believed that whatever God wills, God gets.

It seems that the predominant view in Christianity makes the goodness and perfectness of God and his son less powerful than the evil that lies in mankind.