Freedom in Scripture

Slaves, obey your earthly masters with respect and fear, and with sincerity of heart, just as you would obey Christ. Obey them not only to win their favor when their eye is on you, but like slaves of Christ, doing the will of God from your heart. Serve wholeheartedly, as if you were serving the Lord, not men, because you know that the Lord will reward everyone for whatever good he does, whether he is slave or free. Ephesians 6:5-8

There once was a time when those who called themselves Christians used the passage above to justify slavery. It seems impossible to us now, and we can agree now that this passage does not support slavery at all.

Why is it that we would believe that the following passage actually supports the idea that women must live their lives as submissive to their husbands?

Wives, submit to your husbands as to the Lord. For the husband is the head of the wife as Christ is the head of the church, his body, of which he is the Savior. Now as the church submits to Christ, so also wives should submit to their husbands in everything. Ephesians 5:22-24

Why is it that there are some who would never support the horrible idea of slavery but would still say that the slavery described in the second passage is the will of God?

I suppose it's obvious that I have a pretty strong opinion in the matter.