In my opinion no it is not necessary to do people there doing a good job. But it does make the other person feel better . But you cannot give a person to much glory for then they will only strive to hear good feed back and not be use to hearing constructive negative comments .
You need to show us a picture, or the answers for it
Representative democracy is a type of democracy founded on the principle of elected officials representing a group of people, as opposed to direct democracy.
It is also called indirect form of government.