I drive in the left lane a lot, and pass on either side of cars (legally) that are slower, and don't hold up traffic if I can get over.... typically at 13-14 mph above the posted limit.
Anyone who suggests that the left most lanes are for "passing only" has no concept of "queueing theory", maximum throughput, or how to maximize the efficiency of traffic flow in congestion.... jmho.
It's sorta like when ya tune a network .... or tuna fish
