Aviation, perhaps more than most other human endeavors, draws Type-A personalities. Add that most of those folks actively involved in commission of aviation acts have ultimate responsibility over their particular domain, and, well, sometimes we see things differently, to put it gently. One big aspect of professionalism is how we handle those different views.
It’s Natural
We humans naturally have disagreements with those around us, especially in aviation. Should I run rich-of-peak or lean-of-peak? Where do I turn my base? How does that match the recommended procedure? Tower said they Googled a short approach. Are they right? (More on this later.) At what point do you stop on frequency?
