One more thing. If you give one class on prisoner special privileges shouldn't you extend special privileges to all prisoners in order to fulfill the principles of the 14th amendments Equal Protection Clause?
No state shall make or enforce any law which shall abridge the privileges or immunities of citizens of the United States; nor shall any state deprive any person of life, liberty, or property, without due process of law; nor deny to any person within its jurisdiction the equal protection of the laws.
You see extending special protections to some prisoners while denying those protections to the rest does violate the Constitution.
If prisons were made generally safer, so that one could expect punishment
meted out exactly as ordered by the court, this wouldn't involve special privileges.
But "equal protection" would be best meant to impose no exceptional or
unreasonable risk of injury or death upon a prisoner. A reasonable person
would recognize that some prisoners are at greater risk than others, so the
equal protection would in some cases mean different treatment, eg, segregating
violent prisoners from vulnerable ones. This is already common practice,
albeit inadequate IMO.
Our legal system already recognizes the cromulence of unequal treatment
in order to effect "more equal" results, eg, adjusting grades or test scores
to account for disadvantaged background when admitting students to state
universities.