The world's caste system seeks to deprive us of our real value. The world says people feel inferior because they are inferior, while God seeks to exalt the inferior as well as those who feel inferior. Paul reminds us of God's love for us in our depravity. You see, at just the right time, when we were still powerless, Christ died for the ungodly. Very rarely will anyone die for a righteous man, though for a good man someone might possibly dare to die.
Sin is deceitful.
Satan encourages us to sin through pride. He tells us what we are contemplating doing will make us wise. When we do what Satan asks, we experience shame. Satan uses our shame to tell us our worth has been depreciated because of sin. Through understanding the love God has lavished upon us we can allow God to exalt us to the position of his child.