Find for me one single example of someone saying "we sent our ambassadors" when he means one man, in arabic?
Arabs may address a person of honor, i.e a president or anybody by the word "Hadratoukom", "Seyadatoukom", Jalalatoukom" ... but when mentioning those people as a third person, it is never said, "Hadratouhom, "Seyadatouhom", or Jalalatouhom", but in the singular third person form, i.e. "Hadratouhou", "Seyadatouhou" or "Jalalatouhou", regardless of the importance of that third person.
Here's another example of Allah all over the place...
Can Angels Disobey?
About the angels: For NONE are arrogant (before their Lord). They ALL fear their Lord, high above them, and they do ALL they are commanded. -- Sura 16:49-50
And behold, we said to the ANGELS: "Bow down to Adam". And THEY bowed down, EXCEPT Iblis. He refused and was haughty. -- Sura 2:34
Explain....