There are some implied qualifications in the listing for elders to me. Someone mentioned she is to be in submission.
Given to hospitality would be greatly enhanced if she were also, wouldn't do for her to be in the wood shed while he is hospitable
Not greedy of filthy lucre would require that she be satisfied with what she has within the marriage.
Ruling the house well - includes the submissive wife.
Having children in subjection, would require the wife to be in cahoots with the husband to see to his standard while he is away - a united front with kids is almost a must.
Good report outside. A wife that is not walking in the husbands footsteps with the Lord might well bring poor reports from without.
I'm not sure the listing for "deacon's wives" is for deacon's wives, but that is a standard that might be suggested to the prospective pastor's wife.
Titus 1.9 suggests his life will affect his ministry, and she will certainly affect it as well. The context is living a good life so they can minister properly - a wrong living wife will detract greatly.
And if all else fails there is the pastor that requires the older women of the church to teach the younger women of the church

which isn't being done to often these days I fear.