Christopher:
I think that the speed limit laws do not deal with justice per se. It is when one breaks a speed limit law that justice comes to the fore, but the law itself is neutral to justice, as I see it.
"1) nothing prevents him from being paid more ( with the exception that his employer chooses to be unjust but this is the employers injustice not the laws)"
In that case, why do the bishops say that the law itself is a "just means to promote...?"
"2) Although he his work is still undevalued the law has at least required a value higher then what he might otherwise have been given ( especially given the employers already evident intent to underpay him)."
The undervaluing of the work (paying an unjust wage) is covered in Rerum. The fact remains that the law still does not serve justice and yet the bishops promote it as such.
"Also, pushing this down to the level of the state or manisipality seems only to inclease the accuracy of information gathering and allow for a more complex decision to be made, it would not seem to actually answer any of your original objects."
It does answer my treatment of subsidarity which was added to the original, though in, I think, a first post v. changing the topic post. The original objection, however, is to the bishops supporting as just a law which seems anything but. Whether the municipalities actually do establish a "just wage" is then their responsibility. It is also much easier to determine whether a "just minimum" is, indeed, being paid. But the main focus of the argument is the bishops promoting something under the auspices of "justice" which, to my mind anyway, is not just.
Michael
"The Christian ideal has not been tried and found wanting; it has been found difficult and left untried"
"The poets have been mysteriously silent on the subject of cheese." - GK Chesterton