Considering that Arizona has had a high mortality rate (deaths) of Prisoners, due to neglect and abuse, I don't think their "elite" class over there care much about anyone in jail or prison. Even if the majority of inmates there are for non-violent offenses and or got caught up in the system due to the mandatory and maximum sentences, even for first time offenders.
I do think that this Sheriff is really "loony" and very dangerous. He puts these flags in their cells as a way to antagonize them, knowing full well many are probably very depressed, angry and feeling humiliated from all his known abuses (no telling what we don't know in the way of his abuses). Most of them are immigrants too from my understanding. He really hates Mexicans and Blacks, and what ever he can get away with in the way of being abusive (even if it's illegal, or borderline illegal) he will do it.
As long as the people in Arizona allow him to continue he will keep on doing crap like this. I remember reading he would put the prisoners out in tents outside in 110 degree weather and give them very little water. He would force many to wear ladies pink underwear to humiliate them. In my opinion this is not helping anyone and makes things much more dangerous for civilians living in Arizona. Many in these places have serious mental health issues, and this will make them much much worse. If they ever get out, they will be a ball of anger and hate, and whoa to the people who get in their path.