Grannyactivist - I heartily agree with everything you say. The prisons are full of people who are mentally ill, alcoholic or drug addicts. People who have been in care , ex-servicemen and black men are disproportionately represented too. Imprisonment is used as a way of putting 'problem' people out of sight.
The real villains, the ones who run the drug rackets, money laundering, people traffickers, corrupt policemen, judges, bankers and politicians, are virtually untouchable. They can afford bribes, lawyers and accountants. When high profile crooks are finally caught, they often end up in open prisons, or with cushy jobs like librarians.
It will be interesting to see what happens to Rebekah Wade - I am not going to bet on her ending up in Holloway.