Two things stood out in my inspection of Bethel and Bethelites over the years and my experience as a commuter worker:
1) How much every drank...including underage drinking. It seemed that people drank to numb themselves from the abuse at Bethel.
2) What a revolving door it was: people leaving to get married, married people who got pregnant, and people who came as older adults who found that Bethel was nothing like it was advertised and so went back to their houses.
Bethel has evolved in some ways since the 50's, 60's and 70's (and apostate 80's). In order to attract and keep men with professional skills, more older married couples were brought in. The accommodations were gradually improved so married women did not have to walk down the hallway to use the toilet. Studio and one-bedroom were built and cooking in the rooms became more frequent. Wives (sisters) were given jobs that were not just housekeeping and laundry; even training some for professional jobs.
I can believe and have seen most of what you describe...
Today young men are encouraged to sign up by their families...for the status of being a Bethelite: better marriage material, more likely and quickly to move up the MS/elder ladder.
The abuse at the congregation level is bad; but if you can survive Bethel....