If you are going 76 in the left lane and the cars in the right lane are going under 70, as the situation you described, then you wont be cutting anyone off. If you are going raster than someone and you get in front of them, they are not going to run into you.
And the left lane on a highway is always for passing. If you are not passing, you should get over. Doesnt matter if you feel inconvienced, it is the rule. Most highways even have signs that state that. What you are saying is that it is ok for you to inconvience somene else as long as no one inconviences you.
Ah, but the guy doing 65 has someone else in front of him doing 65, and they’re not very far apart, are they? Not as easy to pull back in as you make it sound.