Or, perhaps to place it for a populace that has no other frame of reference for the item.
you = half empty
me = half full
just a thought.
If you notice, those kind of cultural references always serve the left, it is how they create a cultural memory and rewrite history.
It is how they created a fake history for J Edgar Hoover, or JFK or Republican Presidents.
Watergate lives and is kept fresh in the memory of America, but the Clinton impeachment was never hammered into the national consciousness and has been allowed to fade even from the memory of people that witnessed it.