After the fall of Man (mankind), God placed the man in the position of authority. Sin meant that without an established order, differences would be unresolvable. Further, as the woman (Eve) had been the one to lead the man (Adam) into transgression, God saw fit to put her into subjection to him.
Paul explained this to Timothy just before instructing him in the qualifications for bishops and elders.
But I suffer not a woman to teach, nor to usurp authority over the
man, but to be in silence. (1 Timothy 2:12, KJV)
For Adam was first formed, then Eve. (1 Timothy 2:13, KJV)
And Adam was not deceived, but the woman being deceived was in the
transgression. (1 Timothy 2:14, KJV)
In ordaining twelve disciples, Jesus was establishing the proper order for His church. This was to be the precedent by which the church should be modeled, with men in leadership. As regards the leadership, this was no different from the Old Testament times where men served as priests and kings.
But in the larger group of disciples, those not specially ordained by Jesus, women were included. Anyone can be a disciple of Christ, and anyone can be a prophet or prophetess, but God has chosen men to be the ordained elders of the church.
Paul clearly understood this gospel order which would give structure and stability to Christ's church, and, under inspiration, he wrote instructions to Timothy about how to establish this order in the churches.
This is a true saying, If a man desire the office of a bishop, he
desireth a good work. (1 Timothy 3:1, KJV)
A bishop then must be blameless, the husband of one wife, vigilant,
sober, of good behaviour, given to hospitality, apt to teach; (1
Timothy 3:2, KJV)
Those instructions were written for our benefit as well.