I'll just take this underlined bit and say that Paul must've been having a very cynical day when he wrote that. I'm quite sure that there are people who do good in the world.
I would cite this as one of the most fundamental things wrong with Christianity as it is practiced mostly today. The focus is way too much on his death, and not nearly enough on his life. He did not come to earth to die. Such a truth would only prove that God is moronic (what is the point in creating life for the purpose of taking it away? It's a paradox). Jesus came to show us what is good, so that we may lead similar lives of...goodness.
If anything, I would interpret this passage as proving my point. It says quite plainly that you don't get into heaven simply for believing, but you get into heaven for doing God's work on Earth, i.e. doing good without the precondition of believing in the Christian God and Jesus.
But I won't even try to over-Bible you, because there is no way I could; I do not base my faith off the Bible, for the reason that I think a lot of it makes no sense considering Jesus' message and God's benevolence.
Paul was quoting from the Old Testament through out that passage from Romans. His basic point was that we cannot be good, since by definition we are sinners. Sin is the exact opposite of good. Paul was not being cynical. Boy that is just a hopeless attempt by you to brush that away.
Jesus purpose was to come to earth to provide a way for sin to be defeated, since it is the ultimate. His life proved tht he was sinless and when he rose again, it was proof that he lived the life that was acceptable. The bible is explicit in saying that there is not forgiveness of sins without the shedding of blood. That was the whole point of the Day of Atonement sacrifice, since the blood of the lamb was symbolising that they were cleansed for year from their sins. Also the Passover is a testament to what blood does does. The original Passover happened when the blood of the lamb was used to cover the family from the coming plague. It was by the sign of the blood that the angel of the Lord went by the house and not touched it. These are symbolising what Jesus would do for us. John the Baptist calls him the Lamb of God in John 1:29. Jesus in his discourse with Nicodemus said that he would have to "lifted up", signifying the manner of his death. He was specifically referring to the situation in the dessert when God sent some snakes to chastise the Israelites for their sins. All they had to was to look at the bronze snake once they were bitten and they would not suffer from the poison. A clear picture of what Christ would do, that he would take away the sins of those who trust on him. The people had to have faith that what God said would happen, and that is what happened if they had faith to look at the bronze snake.
Obviously you did not read it properly, since he called those who he did not know as workers of iniquity, another word for sin. He was condemning them even though they were doing things in his name and doing marvellous works, i.e. doing good, but according to Jesus they are workers of sin, i.e. they are evil, not doing God's will. The exat opoisite of what you said.
Since you seem to only trust in what Christ sasys, then I will leave the final word to him.
John 3:16-21 For God so loved the world, that he gave his only begotten Son, that whosoever believeth in him should not perish, but have everlasting life.
17 For God sent not his Son into the world to condemn the world; but that the world through him might be saved.
18 He that believeth on him is not condemned: but he that believeth not is condemned already, because he hath not believed in the name of the only begotten Son of God.
19 And this is the condemnation, that light is come into the world, and men loved darkness rather than light, because their deeds were evil.
20 For every one that doeth evil hateth the light, neither cometh to the light, lest his deeds should be reproved.
21 But he that doeth truth cometh to the light, that his deeds may be made manifest, that they are wrought in God.
Luke 18:18-27 And a certain ruler asked him, saying, Good Master, what shall I do to inherit eternal life?
19 And Jesus said unto him, Why callest thou me good? none is good, save one, that is, God.
20 Thou knowest the commandments, Do not commit adultery, Do not kill, Do not steal, Do not bear false witness, Honour thy father and thy mother.
21 And he said, All these have I kept from my youth up.
22 Now when Jesus heard these things, he said unto him, Yet lackest thou one thing: sell all that thou hast, and distribute unto the poor, and thou shalt have treasure in heaven: and come, follow me.
23 And when he heard this, he was very sorrowful: for he was very rich.
24 And when Jesus saw that he was very sorrowful, he said, How hardly shall they that have riches enter into the kingdom of God!
25 For it is easier for a camel to go through a needle's eye, than for a rich man to enter into the kingdom of God.
26 And they that heard it said, Who then can be saved?
27 And he said, The things which are impossible with men are possible with God.
