And the Lord God said, It is not good that the man should be alone; I will make him an help meet for him.
(Genesis 2:18 KJV). A man is not an all powerful being; therefore, there come times when he needs help. God created a woman to help a man. While in this context there is mention toward creation for companionship, in 1Peter 3:1-2 the woman/wife is a help to a man/husband in times when he may not be in the Word as needed of him. 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.(1 Peter 3:1-2 KJV)
In the natural flow of things, a godly man will by example teach his family the way of godly success. It is not his way, but yet the ways of He who taught him. If at any point in time a man loses his way, it is imperative that he regains his Christian leadership, and that should be done by his wife, without opposition and challenge hinging from his failure. Therefore, this process should be done with the proper level of respect and discretion similar to the address given to the wives of deacons, which required that they be not slanderers (1Timothy 3:11). She should reflect, not the behavior of her own desires and discernment, but those of God. And by this, she will not shame him, but she will be the crown of her husband and a virtuous woman(Proverbs 12:4).