It's not a reality for false believers who think they can get away with sin. A true believer who loves God will want to do what pleases the Lord. The chastisement is a reminder to them so as to please God. It is a wake up call and it is not so much in what they love in this world. Christians offer their bodies as a willing sacrifice unto God. They are bought and paid for with a price. So what is their life anyways if it is not God's? What is truly chastisement? Did not Job suffer and lose all things? Did Job have some kind of sin in his life? No. The point is that chastisement is not a key factor for a believer who wants to love their sin more than those believers who love God more.
Chastisement is directed at the people of God who are in SIN...sometimes it involves physical death, the loss of reward, sickness, disease, the loss of financial gain, the loss of Children (David) etc...it has no bearing on the LOST and is directed at the saved with the end result meant to lead to the peaceable fruits of righteousness...To say that it has no ability to move a sinning child of God and is not a deterrent to God's people contradicts the bible and God.......if you refuse to acknowledge it then go for it....the main reason you cannot accept the truth is because it contradicts your belief and the salvation lite/lose your salvation message....!