God never needed His wrath abated because of sin. The atonement does not pay our debt for sin. The devil has deceived us into believing that Christ was a ransom for us, and that he redeemed us by paying for our sins. Jesus did not pay for our sins. To believe that our salvation was literally purchased with Christ's blood makes God to be vindictive and bloodthirsty.
Imputed righteousness is a lie.
God does not look on Christians through the garb of Christ's blood. True repentance means ceasing from all sin before we die. Salvation is not so dependent on whether we accept Christ - it's whether He will accept us. We need to do more so that He will want to accept us. Salvation is dependent upon our adherence to moral law.