Would an E9 comply if ordered to attention by an O1?

Yes

YYe

That O1 has lost his mind!! From my past experience I saw a fresh out of training 2lt get mad about comments being made and told the CSM to watch it and at ease, man did that CSM put him in his place and strike fear into that sorry piece of shit, mind you the 2lt fell behind in a platoon run. Then shortly after the battalion commander caught wind of the situation and dug into that butter bar like nobody's business it was by far the best run I had had!!

Yes

Out of respect for the rank not the person yes. With a respectable discussion on future request.

Yes, at least from my experience in the Marines. However, I must say senior leadership in the Marines would never have to be corrected. The senior leadership set great examples and really exemplified what leaders are.

He has too. Superior Officer by rank.

Yeah but the Ensign would soon regret it.

That butter bar needs a quick hip pocket class on the unspoken rules of ranks

I ran it on the similar situation. I respectfully ran him up on side and down the other because he was going to get my Marines hurt. The SGM and XO took care of the rest... There is a line that must be crossed only when needed but discipline must be regarded and up held...