My rebuttal to that and the "If I can't trust you to wear your uniform in exact accordance to regs, how can I trust you in the aircraft" argument, is always... If your primary worry in life is how we wear our flight suits and closely we follow AFI 69-69, or substitute in any of the countless queepy things the AF cares about these days... How can we trust you to lead us? Given you've just made it glaringly obvious you don't prioritize tactical proficiency, job performance, morale, retention, or anything relating to effective leadership.
I'd even go so far as to say that attitude is often indicative of poor performance in the aircraft as well. So much of aviation is prioritization and the ability to recognize the next most immediate [and real] threat. Worrying about say... zipper height, as opposed to how effectively one does their actual job... Is akin to checking if your last four are written correctly on the flight orders as you CFIT into the side of a mountain, or the proverbial rearranging of the deck chairs on the Titanic as you plow into an iceberg.