re: People on interstate in left lane going speed limit, doesn’t care or doesn’t know?

KRETP is the law in my (and many other) state.

I do not understand why people cannot drive with common sense and courtesy. Get in the right lane if it is open, and let people pass on the left. It is annoying to me that people drive slowly in the left lane when the right lane is open, and do it with a sense of “I can do what I want, too bad for you”, or even worse, “you are bad because you want to drive over the speed limit, I will make you slow down”.