I thought @Redleg painted a pretty clear picture of the role of Senior Enlisted personnel in his earlier post, so I'll try and and build on that.
In this scenario we're in 1st BN of whatever Regiment.......
Let's say hypothetically you were one of those Staff Officers (maybe a 1stLt or junior Captain) in the meeting he described, and you made a sarcastic or denigrating comment about the role NCOs (especially senior NCOs) have in the military at large, or within HIS Command in particular, and you made them in front of the CSM.
Likely what would happen is you would then see him give an order to the CSM, like he told you he would. That order would probably be for him to leave the room. After he left the room, a "conversation" would likely take place (maybe in front of the other officers, maybe not) stressing the importance of people like the CSM, and how crucial it is to conduct oneself in a professional and military manner in front of not only ALL troops, but especially the CSM.
The CSM would almost certainly know about this conversation, maybe not every detail, but he'd know the gist.... but it's highly unlikely he would ever bring it up to you, because after all..... you are an officer, and he understands there is a chain of command and how it works. He conducts himself in a professional and military manner.
About a month later, when the OPORD for the notional assault you were assigned to write by the BN Commander has been kicked back for the 7th or 8th time, and you haven't had a free weekend all month, and you've gotten all the help you could from your fellow Platoon Commanders, and you've gotten help from your Platoon Sergeants, and the Ops O isn't helping you anymore because he has a training schedule to maintain..... you finally do it..... you break down and go ask the CSM for help. He takes a look at the OPORD and says "looks good to me, we'll just tweak this one thing here because the BN Commander likes to see this covered, he's made that very clear to me".
You think to yourself.... "could it really have been JUST THAT THING????" Low and behold... the OPORD gets an OK from the Boss. Was it just that thing? Or was it another thing you were supposed to get out of this?
You will have come away from this with two learning objectives met..
1. What Commanders Intent is, and what role the CSM plays in that
2. Nobody is immune from games due to a "F up"
A couple years later, maybe this time in combat, maybe when you've taken Command of your own Battalion, you'll be tasked with writing another OPORD, this time maybe for a real assault, from the Regimental Commander. This time it's also not your weekend on the line, it's dude's lives. However, this time you won't hesitate to ask the CSM for help wargaming some ideas. Partly because you've been taught that lesson already, but also because one or two of your Company Commanders are dead, and the other BN Commanders are planning their own assaults. The Regimental Commander is 200 miles away and their comms have been touch and go all day.... but the CSM just pulled into your FOB with the re-supply convoy (The Regimental Commander sent him along, as the Assistant Convoy Commander, with the S4 Captain in the lead). You may have missed them completely if your HQ Company 1stSgt hadn't popped in and reminded you, good thing he had that whole thing covered, because you had completely forgotten about it after being up all night the night before last when 3rd platoon was in that nasty TIC. Will the CSM get some sleep before leaving in the morning with the convoy? No, he'll stay up all night and help you plan your operation. The S4 Captain needs the rest more than him.
Because when the CSM gets back to HQ..... nobody gives him orders except the Commander.
This is a link to a paper that gives some overview of the role of Command Senior Enlisted Leaders, you'll notice there's two signatures on it, one from an E-9 and one from an 0-7, it's a non-satirical look at how this is generally supposed to work.
https://keystone.ndu.edu/Portals/86/command_sel_insightspaper_4thed_2021jun.pdf