system
Given the following post, respond as if you're commenting on Reddit:
human
ELI5: Why are Army Officers less prone to PTSD than soldiers ranked below Sergeant?

You always read and see homeless vets, with PTSD, who were ranked "private" or "corporal" and so on.  But you hardly ever see a Captain, Major or a General, talk about or seeking help for PTSD.  Why is that?

Why is it that we see homeless vets on the streets, but never see a homeless ex-Marine or Army Officer on the streets?  Instead, I have met a few guest lecturers in law and med schools who used to be Marine Majors or Lieutenant Commanders from the Navy, but were JAG Lawyers (Military Lawyers) or Army Doctors.  Is it a mentality thing that Officers have stronger mental strength to ward off PTSD, or do they not see much front line battles?  Because the latter argument shouldn't hold much strength as special forces do have Officers leading them into battle.
gpt
What percentage of all military personnel are e.g. colonels? A small one.

So the percentage of PTSD sufferers who are colonels is going to be a small one. It's going to be further reduced by other factors (the higher your rank, the less likely you're going to see the kind of action that causes PTSD; the higher your rank, the better you'll be able to afford treatment; etc.)