Is oral history the words of people who have not been seen?

Some are of the view that oral history is useful because it is the words of people who have not been seen. It is meant by people who have not been seen, those who have not had any title or position. If we look at oral history from this point of view, it will be objected why the oral memories of famous people such as revolutionary leaders or war commanders are compiled.

Daily Notes of a Mother

Memories of Ashraf-al Sadat Sistani
They bring Javad's body in front of the house. His mother comes forward and says to lay him down and recite Ziarat Warith. His uncle recites Ziarat and then tells take him to the mosque which is in the middle of the street and pray the funeral prayer (Ṣalāt al-Janāzah) so that those who do not know what the funeral prayer is to learn it.

A Critique on Oral history of War Commanders

“Answering Historical Questions and Ambiguities Instead of Individual-Organizational Identification”
“Oral history of Commanders” is reviewed with the assumption that in the field of war historiography, applying this method is narrated in an advancing “new” way, with the aim of war historiography, emphasizing role of commanders in creation of its situations and details.
A cut from memoirs of Jalil Taeffi

Escaping with camera

We were in the garden of one of my friends in "Siss" on 26th of Dey 1357 (January 16, 1979). We had gone for fun. It was there that we heard the news of Shah's escape from the local people. They said that the radio had announced. As soon as I heard this news, I took a donkey and went on its back.