Religious bigotry is not a good way to bring the light to people's hearts in my experience. How is this man's attitude and moralism substantively different from the anti-religious bigotry and secular moralism of Soviet totalitarianism?
The Orthodox Christian faith is not primarily a moralistic and authoritarian faith, but rather an existential and transformative faith. The faith teaches us that our hearts must first undergo a transformation, a sincere movement towards God in the Holy Spirit, before we will willingly begin to conform our behaviors to God's will. Without that transformation of the heart, the awareness of sin and the interior desire to not sin is weak in a person. Thus, for the authoritarian moralist, often the only way to get the unenlightened person to behave is to use coercion, threats, and force. But one who uses these tactics only shows their own sin, for these are not acts of holiness.
This is why moralism always devolves into one man using power (if the man has power) to force another to "behave", because it treats the other as an object of behavioral judgment rather than a real person. It starts with behavior and hopes the whipped man's heart will follow, and uses what the moralist believes is God's will as the whip! Frankly I consider it a kind of blasphemy to use God that way, for is not the moralist whipping another with the scourge of his judgment as Christ was whipped by the centurions? Moreover, I believe that one reason secularism has gotten such a hold on modern societies is because of Christian men like this that present a picture of God to others that is, quite frankly, offensive to basic notions of human decency and care. Who would want to be around such a person, much less work for him? Who would want to be in a church filled with such people or worship the God these people portray? It would be an insufferable experience that would drive people out of the Church, not into its loving embrace.
God lovingly respects us as persons, as icons of Himself, free in much the way He is free, not as objects or slaves to to be whipped into shape. We are called to imitate Christ, who never used coercion to bring people to Him, but rather loved the sinner and encouraged repentance for the sinner's own spiritual health. This dairy owner would do well to examine his own heart, and strive to see the image of God even in the worst of sinners, even if they are his employees. He probably thinks what he is doing is born of love, but the source of moralism is almost always a deep-rooted and passionate pride and anger, not real love.
Lord have mercy, and please forgive me, a sinner.