Her earthly husband must be in line with the Heavenly One for the earthly husband's vote to count, for his opinion to matter.
@enlargeourtent I would have to agree with
@ZecAustin on that due to 1 Peter 3. Often times this passage is used or interpreted as being to an unbelieving husband. However, the letter is specifically to Christians and the passage is specifically about a believing husband who is not obeying the word.
Likewise, ye wives,
be in subjection to your own husbands; that,
if any obey not the word, they also may without the word be won by the conversation of the wives;
While they behold your chaste conversation
coupled with fear.
Whose adorning let it not be that outward
adorning of plaiting the hair, and of wearing of gold, or of putting on of apparel;
But
let it be the hidden man of the heart, in that which is not corruptible,
even the ornament of a meek and quiet spirit, which is in the sight of God of great price.
For after this manner in the old time the holy women also, who trusted in God, adorned themselves, being in subjection unto their own husbands:
Even as Sara obeyed Abraham, calling him lord:
It only serves to prove the point even more if you believe that the husband mentioned above is an unbeliever! Thus, a woman is to be in subjection to her own husband regardless of if he is "in the Lord". As it is written however, along with every other witness in Scripture, the husband is always the head of the wife with no conflict of interest between he and Christ because thats the way that Christ set it up!
So what if the husband demands something unholy or anti God's commandments for the wife? Or makes a decision that leads contrary to God's will or commandments?
According to every example that I'm aware of in Scripture, only the man is held accountable. See Numbers 14 and compare Joshua 5:4. Only the men of war and over 20 at Kadesh Barnea had to die in the wilderness before the rest of the people could enter Canaan.
1 Cor 11:3. But I would have you know, that the head of every man is Christ;
and the head of the woman is the man; and the head of Christ
is God.
1 Cor 11:3 is a prime example of a place that if what you stated above were true, this would be the place. However, that is not what is stated. There is a clearly defined chain of command, responsibility and accountability. When you attempt to circumvent what Christ has established as you described above, even if you claim an altruistic motive, the result is a home with two heads and that is truly a monster!