There is literally nothing a prayer offered up in faith cannot accomplish. Apostle James reminds us about this and points out that Elijah was a man like us, “…and he prayed fervently that it might not rain, and for three years and six months it did not rain on the earth.” A watchman must believe that they can shape society, influence national economies and steer us towards a better future by faith. However, there is a need to understand the spiritual landscape and wage a war accordingly. This matter goes beyond discussions, debates and “impact projects”, a watchman must wage a spiritual war.
For though we walk in the flesh, we are not waging war according to the flesh. For the weapons of our warfare are not of the flesh but have divine power to destroy strongholds. We destroy arguments and every lofty opinion raised against the knowledge of God, and take every thought captive to obey Christ, being ready to punish every disobedience, when your obedience is complete.(2 Corinthians 10:3-6 ESV)
The key idea here is to understand that everything we can see physically is driven by things we cannot see. There are spiritual forces that shape the society, strongholds and arguments that must be destroyed spiritually before progress can be made on the physical front.
A watchman must carefully identify strongholds, arguments and thoughts that have captured the hearts and minds of the people and destroy them with prayers. This is the first step to real change. For example, if you want to tackle poverty under your watch, your first impact project would be to prayerfully combat the spirit of poverty. Then you have to identify the hellish ideas and frameworks driving the conversation and pray against that as well. Those evil thoughts running riot must be captured spiritually before you would see them disappear from the conversation. Your businesses and projects will not have the desired effect unless you win the spiritual battle first.