Perhaps the parameters of the term 'prison' have to be tested here.

If someone is in jail they get free food, rent, healthcare and education - even though a court deemed them not worthy to be in the general law abiding population for a spell.

If someone is in the general law abiding population they have to pay for food, rent, healthcare and education.

If a capitalist starting out with nothing wanted to maximise their potential then going to jail would be the best way to get all the benefits from the system which would otherwise cost them time and money.

Their transformation from criminal into a healthy, fit and educated member of society came at expense to the taxpayer.

This is a direct copy from the socialist model only it solely benefits those found to be criminal enough to put in jail by the system.

If this was to be flipped then 'indentured labour' would be prison time and law abiding citizens could claim that they themselves are in a form of slavery and demand the same benefits.