"Plain folks" propaganda, AKA the common man, is a technique in which a speaker or general authoritative figure presents his ideas words and gestures to frame himself in such a way that he/she is relatable to the wider, more moderate general population. The focus becomes less about the ideas being presented, and more about that fact that said ideas are coming from someone "just like you, with concerns just like you." Take the image below...
The Nazi regime as presented here is not about radical totalitarianism and genocide, it's about a man ensuring the welfare and protection of his family, no matter the cost. It's about protecting the ones you love, and providing for them. Wouldn't you do anything to protect your family from insidious outsiders?
Here, one is asked to ignore the fact that Citgo is a $32 billion dollar profiting, global company... instead, Citgo is simply the employer of your next door neighbor.
This lovely lass is your sister, your daughter, your sweetheart back home fighting on the homefront. This isn't uncle sam or some presidential politico asking you to contribute, this is your mom, and who knows better than dear ol' mom.
And speaking of presidential politicos, if you're trying to get millions of people to understand that you're just as concerned about the everyday-to-day issue, that you too are effected by the economy, and that you support your local, independent business, you don't want to be seen eating your lunch on fine china in the White House dining room with 4 forks, 3 spoons, 2 knives, a linen tablecloth and a personal waiter... no, you go down to the burger joint down the street, make sure there are tons of photographers, and enjoy a fast food meal just like dear ol' dad used to treat you too when you were a kid.