Literature from the National Museum of African American History & Culture says concepts like valuing hard word and time, and being polite and objective are all aspects of whiteness or white culture in the United States.
“The National Museum of African American History & Culture wants to make you aware of certain signs of whiteness: Individualism, hard work, objectivity, the nuclear family, progress, respect for authority, delayed gratification, more” 



https://nmaahc.si.edu/learn/talking-about-race/topics/whiteness