That’s a bingo! Unwittingly, you just made an argument on why propaganda works on people.
You’re engaged in the fallacy of category error. The subject of the thread is a person who plies his craft before the public and is appreciated by that public.
You asked why someone (who I assume are people who ply their craft in private) weren’t also publicly appreciated.
The answer is a simple, they’re not in the same category (public vs. private).
Propaganda has no connection. Propaganda is targeted to the public but it doesn’t mean the public appreciates it.