First, believers have the perfect righteousness of Christ, because they have none of their own. That's called 'Positional Justification.' At the Judgment, believers, based on grace through faith in Jesus Christ, will be declared perfectly righteous with all sins forgiven. Unbelievers will have none of that, and they will not enter into heaven.
Second, when believers are indwelt with the Holy Spirit, the process of 'Progressive Sanctification' begins. Progressive sanctification is the indwelling Holy Spirit dealing with our sinful nature and slowly but surely building Christ-like character in the believer. This process is a life-long process that only ends at death. Unbelievers don't have this assistance or Godly wisdom about what is right or wrong, unless they diligently obtain it from the Bible or Judeo-Christian sources. Which brings us to #3.
Third, along with progressive sanctification comes Godly wisdom. Bill Clinton could have used some of it, and he wouldn't have gotten impeached and embarrassed with his serial adulteries and sexual assaults of women. Hillary is a full quart low of Godly wisdom also, or she wouldn't be embracing ungodly positions on abortion, gay marriage, forced redistribution of wealth, and a generally corrupt lifestyle. Her UNRIGHTEOUS behavior and sequent deceitfulness is an affront to our political institutions and decent Americans everywhere. For all intents and purposes they appear as progressive secularists.
So sorry, there are no righteous unbelievers. They can pursue honestly, integrity, and have good character, but those are in the eyes of man, not God.
I recommend the Democrats do something different this time, and go find someone with some moral integrity, and leave Hillary, Obama, Pelosi, and all who think and act like them at home.