We can ring away from evil because it is every where and atimes we can't predict what may happen and those who devil have blind their eyes that they derive joy in doing evil. The reality is tha any man who is on Jesus Chrst is new creature and operate in eternal life and can't be blown away by Satan as see in Isaiah 57 vs 1.
Be in Christ mean your are rooted in Christ, the word of God direct your steps, your actions and the result is seen by many. The life you operate is a supernatural life even the devil does not have access to your life
Yes, they may be making it, accumulatiing their wealth and careating firms for themselves but remember one day they will leave those things behind. Remember also that the grace of Gid speaks for the children so let us not misuse the grace given to us by God.