I heard an argument for this that I hated. Someone confessed this was how they drive on purpose. They set cruise for speed limit or just under so everyone who wants to pass can do so on the right. They don't have to worry about traffic merging or trying to get over for an exit. It's all so they can sit on their phone and not have to pay attention to other drivers and be somewhat safe about it.
It makes sense, but it has the same energy as the people who drive around with their brights on all all the time so they can see slightly better, and F everyone else.
Honestly the drama sounds like it is the extra work that these guys aren't being paid enough to deal with. They're wise enough to know to stay out. Compartmentalization is key here.