“Doctors knew something was going on but it wasn’t personality disorder. It was of course finally called Post Vietnam Syndrome, now known as PTSD. The entire ploy was to save money.”
As you said, they knew something was going on but didn’t know it was PTSD. I agree, so this means their aim was to provide the best diagnosis they could. Therefore, it had nothing to do with saving money as your own statement made clear they didn’t have the option of PTSD. Just PD.
Re-read my post. The doctors knew what it wasn’t, Personality Disorder, and they did know what it was. They were prohibited from giving a diagnosis other than Personality Disorder.It was certainly about money.