The world already has the perfect society where everyone suspected of being a sinner is killed - Iran! They’ve got biblical morality perfected and they have even added to it. On the other hand, Christ established his church for and among sinners - I don’t think the followers of pure works righteousness would want to have anything to do with that.
Iran has not perfected biblical morality. It's a lie. There is little justification for your reductio.
"What shall we say then? Shall we continue in sin, that grace may abound? God forbid. How shall we, that are dead to sin, live any longer therein?" (Romans 6:1-2)
"What then? shall we sin, because we are not under the law, but under grace? God forbid. Know ye not, that to whom ye yield yourselves servant to obey, his servants ye are to whom ye obey; whether of sin unto death, or of obedience unto righteousness." (Romans 6:15-16)
"For the wages of sin is death; but the gift of God is eternal life through Jesus Christ our Lord" (Romans 6:23)
Those of us who believe on the Lord Jesus Christ have the new man, the quickened spirit within a sinful body of death. We should walk in the spirit, not feed the flesh. We do sin, but whom God loves he chastises. We should learn from his correction. I do not know if this woman is a Christian. Getting fired may be such a chastisement. (But from the article she seems unrepentent.)