Paul (a guy who wrote most of the New Testament) in a letter to his mentoree Timothy, wrote towards the beginning of his letter "I urge, then, first of all, that requests, prayers, intercession and thanksgiving be made for everyone - for kings and all those in authority, that we may live peaceful and quiet lives in all godliness and holiness."
Paul's first advice to Timothy and the church was to pray for "everyone." Now obviously, a literal "everyone" would be impossible, but the point is to pray for those in authority. I often forget to pray for the leaders of our city, state, country and world. I also forget to pray for the leaders in the church, both paid and volunteer.
I have a confession: I don't always think prayer changes anything. How can my prayers make any difference? I'm just glad that what I "think" is not what "is." I believe in the power of prayer because I believe in the power of God. It doesn't matter what I think or feel as long as God is in charge. Its not about the prayers I pray, its about the one I'm praying too. Thank you God!