Timothy 3:1 "Know this that in the last days perilous times will come."
Mathew 24:12 "Because lawlessness will abound, the love of many will grow cold."
Planet earth is not going to get better, it's not going to be "won to Christ" it's going to go the way of Titanic and the commission isn't to "change the world" but rather get everyone to the life boat! There is no other name given under heaven by which man can be saved, but Jesus Christ. Whoever calls upon the name of The Lord shall be saved.
Noah didn't "change the world" and he didn't win the culture war, what he did was believe God and built an ark.
As it was in the days of Noah so shall it be--JESUS
Romans 10:13 "Whoever Calls upon the name of the Lord Jesus Christ shall be saved."