To Have & Have Not / Hemingway

Why we get one chapter from a minor character's point of view I couldn't tell you, but no serious harm done.  Story feels authentic.  I started reading this years ago but for some reason didn't finish it; enjoyed it very much this time around.  Unity is weak perhaps, all the material about the well to do elite fighting insomnia on their yachts bursting into the work unexpectedly toward the end, primary narrative seemingly abandoned, where did all these people come from?  Protag anti-hero deep sea fisherman Harry Morgan is driven by economic necessity into the criminal underworld and pays a stiff price.