"For Profit" Immigration Detention Center - A Legitimate Business?

[Ownership] becomes illegitimate... when it is not utilized or when it serves to impede the work of others, in an effort to gain a profit which is not the result of the overall expansion of work and the wealth of society, but rather is the result of curbing them or of illicit exploitation, speculation or the breaking of solidarity among working people. Ownership of this kind has no justification, and represents an abuse in the sight of God and man. Pope John Paul II from Centesimus Annus

A group of investors who have no background in law enforcement or running residential facilities of any kind has just been awarded a contract by ICE and the Department of Homeland Security to build and run a 1000 bed facility in the city of Farmville, Virginia.

According to this article in Facing South the contract was hastily awarded to keep pace with increased demand for space and overcrowding in current facilities as a result of the stepped up pace raids and incarceration.

Gerald Spates, Farmville town manager reasons that the new detention center will keep those who are housed there "safe" from the abuses in overcrowded facilities and from the dangers of being housed with criminal offenders in county jails and other facilities currently doing double duty. He was honest enough to admit that profit was a motivation.

"We've been hearing horror stories about detainees being put into prison with other criminals when all they have done is be here without documentation. Our goal is to keep them safe," Spates said. "But I want to be honest with you. We do stand to gain financially from this."

Holding immigrants in prison-like facilities is much more expensive. It costs between $95 and $170 per day to house immigrants in these detention facilities. Alternatives to detention such as supervised release, electronic monitoring, etc. are much cheaper, costing only about $12 per day.

In the past large numbers of immigrants who were seeking asylum or who were facing deportation as a result of non-criminal offenses had been allowed to remain in the community. Even though they were not in custody the immigration court system still realized well over a ninety percent appearance rate.

In the context of Catholic Social Teaching is for profit detention a "legitimate" business? I can't find a justification, can you?