Even the indifferent Han Solo eventually became a true believer in The Force and the fight of The Rebellion. What's so new about this is that throughout the history of Star Wars, we've always seen both sides of the conflict fighting with passion and fire. Save for Han Solo's mercenary ways on display in Star Wars: A New Hope, we've never really seen apolitical figures who didn't give a shit about the war raging through the galaxy.
Whether its the famous Mos Eisley cantina on Tatooine or the casino-centric metropolis on Canto Bight, its a common staple of Star Wars. Already, shades of Looper seem to show in this description, as we're now going to be privy to the class of citizen that doesn't know, or care, about the struggles of The Resistance against The First Order. So many times across the Star Wars timeline, the hero/heroes enter some shady cantina on a planet they are traversing. Learning this new information makes Johnson's entry into the Star Wars canon all the more interesting, as it not only explores something that the franchise really hasn't delved into, it sounds like a completely Rian Johnson idea. There's a class of wealthy that have helped build all sorts of loopholes in society that will always ensure that they'll survive or even thrive no matter what else is happening out there. They found a way to live above it or beyond it.
What we're going to see in The Last Jedi are some people who have managed to carve out a life for themselves where they can live apart from the galactic struggle.