Contradiction with Ecclesiastes 8:9
This verse suggests that man has power over others to his own harm, contradicting the idea that lack of understanding leads to oppression mentioned in Proverbs 28:16.
Ecclesiastes 8:9: All this have I seen, and applied my heart unto every work that is done under the sun: [there is] a time wherein one man ruleth over another to his own hurt.
Contradiction with Romans 13:1
This verse states that all authorities are established by God, contradicting the implication in Proverbs 28:16 that a ruler's lack of understanding alone leads to oppression.
Romans 13:1: Let every soul be subject unto the higher powers. For there is no power but of God: the powers that be are ordained of God. [ordained: or, ordered]