What vision are we giving people?

I am in the midst of reading "Banker to the Poor" by Muhammad Yunus. Incredible story and I would highly recommend reading it. It also has a component that makes me extremely sad. Yunus had a great desire to change the culture in Bangladesh, and in thinking about what he could do, so he started a bank and lended money to the poor. He was the one who started the micro-lending craze. The sad part about this book is that one person can change the world. Yunus has done just this with his concepts that many mainstream people dismissed, his ideas has turned around not only Bangladesh but also many other places in the world.
So as Christians and people that are involved in church what message are we giving people? Are we giving them the same message Yunus has given people? He not only came up with a way a plan he acted on it. Yunus was a economics professor at a college. He used many of his former students to help with his bank.
Why is the church largely void of late teens- twenty somethings? Maybe our churches here in America are not very compelling. Maybe the radical visionarries are more intriqued by what can happen outside of the walls of the church. Is it a compliment to say the church is a safe place to be at and go to? If there was a visionary from that twnetysomething age group how would our churches treat them? If someone came into our church that wanted to become a missionary not to the foreign mission field but to the churches neighborhood how would the church respond?
What exactly makes a church healthy? Is it great attendence on sunday? Is it people joining a small group? Is it people giving up addictions? Those are all part of health. But is our life really the process of elimanting things from our lives and not adding anything in return? I am under the presupposition that we are all created to do something in life, and if our churches are just here to make sure we are safe and pure than I don't think we will be successful. If we don't give people a vision that we can change the world and are going to, then why would we be following Christ? Was Christ's vision for the church one of safety? I haven't read anywhere in the New Testament the desire for our churches to be full of people to warm seats. If we are not going to give people a vision to give their lives for then why are we suprised that the church in America is declining?