Many seem to be unable to wrap their heads around that, mostly Americans who have never been to Europe. Trucks can't exceed 62 mph (100 km/h) and there are cars barrelling on the left lane, easily exceeding 100 mph (160 km/h). It's not privilege, some want to go slow, some want to go fast, it's all about harmony.
It's sehr verboten to pass on the right lane so people MUST get back to the right and allow the faster cars to pass. I have absolutely no problem with people wanting to go faster and will even speed up if I'm on a one-lane road then use the turnout. Driving back and forth on the 74, I can say with certainty I have never had more than a car behind me for more than a few minutes. If two cars come up, I will go faster. Fortunately, multi-lane highways are very common here in southern California.
Ortega Highway is some of the most dangerous in the U.S., about 99% is one-lane and speed limits range from 55 mph to yellow signs showing 25 mph. I'm not kidding, it is really twisty. By law, people must use the turn out if more than three vehicles are behind. I still do it when there's a single car. Even if one car comes up, I will go faster, perhaps exceeding the limit, then getting off to let it pass then I am back on it going lower than the speed limit and hoping nobody gets behind me.