How could anyone in Germany believe the information the government was telling them when the second highest ranking official was the “Minister of Propaganda”?
Why wasn’t his title less obvious like “ Minister of Communications or Information ?
Words acquire connotations as the years advance. Language is weird like that - and sometimes it can depend on what language. More can always be said on the matter, of course, but you may be interested in just this same question as answered by u/tlumacz.