This may be just "speculation", but based on the history of Barbarick, Anderson, and Dietrich, what are the chances they all were beneficiaries of "Trust Funds"?
In the cases of Barbarick and Anderson, they are most likely, especially of Anderson.
Barbarick got out of serving in Vietnam (never drafted) and his parents died in a car accident.
Anderson claimed to have served 4 years in the USAF after graduating (AFROTC) and resigned his commission while stationed overseas. He lied to his brother-in-law and then abandoned his wife and children in 1994.
No record of employment has been found for either of them. And Douglas Dietrich lives in the same apartment since 1987!