Three QT Bounty Hunter Movies in a Row -- Sequels?

I think it is interesting that QT has now made three movies with a Western-era bounty hunter at the center of the story, in a row. But different each time. And each one is sort of a sequel to the one before it.

NUMBER ONE: "Django Unchained." (2012) Christoph Waltz plays Dr. Schultz, an experienced white bounty hunter who teaches the black Django "the tools of the trade," and by film's end, Django is an experienced bounty hunter himself -- both fast with a gun AND fast with words as Dr. Schultz had been(watch Django talk the Austalian mining company baddies into giving him a gun.)

NUMBER TWO: "The Hateful Eight" -- Samuel L. Jackson IS an experienced black bounty hunter. You could almost call this a direct sequel to Django. Django takes place before the Civil War; this takes place after. Perhaps Django changed his name and joined the Union Army?

But what's important here is the OTHER bounty hunter -- Kurt Russell's John Ruth, "the hangman" who makes a point of bringing in his prisoners alive...which puts his life in danger as long as other outlaws want to make a rescue or the prisoner wants to make an escape. "Nobody said bounty hunting was easy," says Russell. "Nobody said it had to be that hard," answers Jackson.

NUMBER THREE: Leo DiCaprio's fading TV star Rick Dalton starred from 1958-1962 in the fictional NBC bounty hunter show "Bounty Law" . We see Dalton as Jake Cahill deliver this line: "Now some bounty hunters bring their men in alive...which is a great way to get yourself killed. I prefer 'em dead." (And we see Leo/Rick/Jake shoot down his prey.)

So...an interesting progression....a white bounty hunter trains a black bounty hunter...a black bounty hunter mocks a white bounty hunter who doesn't kill his prey...a white bounty hunter swears he ALWAYS kills his prey.

Each movie feeds into the next and comments on the last.

You might call it a theme...