Problem
A Slovak proverb could be translated as "Confidence comes with the position". It indicates that a person's behavior often becomes more authoritarian after taking a higher position. The person starts neglecting opinions of his/her colleagues.? What is the situation in your neighbourhood (workplace and country)? Is it a habit of superiors to take decisions on their own or do they prefer consult their subordinates?
If you were the manger of such a person how would you handle him/her so that he/she would return to perform as before? How would you go about that without hurting his/her feelings?