What must we do?

“On the one hand there is the enormous growth of the Church, and on the other its almost complete lack of influence.” This statement rang loudly true when I read it. The inability to persuade and even minutely control the populace is largely evident.
As Christians we are commanded to work and toil for Christ, and as Noll says that modern Christian pursuit of knowledge has become an “anti-intellectual desire to play the fool for Christ”.
Translating all of this and filling in the holes with modern activities and you get this scenario: A missionary comes to a church and the members become “On fire for Christ” and send out three missionaries. The entire rest of the church does nothing other than attend church and pay tithes. Sure, they attempt to be lights in their mediocre lives but they do not suffer for Christ, they make no change, they wield no true influence. Let us say a member of the church attends a college and hopes to be a physicist, those who find out would say something like,

“Ah! So you want to fight for Creationism!”
“Well, no. Not exactly. I want to study sub-atomic particles.”
“But what are you going to use that for as a Christian?”
“I am going to study and better understand God’s creation.”
“But we are supposed to give everything for Christ! Do exactly as He commands.”
“And God has gifted me in an understanding of the sub-atomic universe. You have told me on countless occasions that you feel God has gifted you in working with children, why don’t you start a youth group or something?”
“Because, our church already has a youth group and besides I pay tithes and talk about Christ at work.”
“Well at the least I am using God’s gift to me.”

Highly intellectual ideas have come under heavy attack by Christian society. This has caused a noticeable fall of the effect that Christians have on society. Thus highly intellectuals consider most Christians foolish. Most if not all highly renowned physicists are anti-Christian. The reason for this? In fact, a certain writer has said about Albert Einstein, “He … looked at what the preachers said about God and felt theat they were blaspheming. He had seen much more majesty than they had ever imagined, and they were just not talking about the real thing.”

No Christian would disagree that Christians must spread the gospel. But, few will sacrifice their own security for His sake. This is evident in the lack of Christians excelling in things other than Theology. If they truly were giving all that they have into their gifts for the sake of Christ, Christians would be at the top of every level of intellectual learning.
That or there truly are no smart Christians.

Do Christians need to give everything for Christ?
Is it possible to make a change in the world for Christ without an amount of influence?
Is a little enough?