By that standard, you would then need to conclude that all medieval artworks and renaissance artworks were not art but Catholic or royal propaganda.
There is a famous quote of the judge on the Brodsky trial (1964): "Who have appointed you to be a Poet?". Аfter he sad that Soviet Government did no appointed him to be a Poet, he was sent in the gulag for 5 years. That is how "art" worked in the USSR.