Many of us hear these bits of wisdom or read them in scripture. The problem is we rarely believe it is as true as it seems. We see so many people that are full of pride and yet never seem to fail. We have a tendency to assume that if others walk in pride without this "so-called" destruction or fall, that it doesn't always apply. Let me introduce the factor that we often overlook or misunderstand. People that are not in a relationship with God may not ever see the direct or indirect results of their carnal living this side of eternity; where those of us in a relationship with the Lord see it quite often. The reasoning is simple when you see it from God's perspective. The Lord may not enforce all of His earthly principle of reaping and sowing here on earth to those that do not regard His principles. God uses these principles to teach us and build us. We are His workmanship.
When you see ungodly people profit from ungodly deeds, do not envy them. They will reap what they sow, whether it be in this life or after. When you see your own pride cause destruction in your life, do not despise it. God is ensuring that you learn and is able to help you recover. Avoid pride and a character that acts superior to others. If you exalt yourself, you are asking God to bring you down to size.