what? One part doesn't represent a whole? You said "virtually any" which heavily implies all. I gave an example of one that doesn't fit your generalization, which means your statement holds little worth.
No, that's not it.
If outside tier 1, then bad job prospects.
In tier 2, and better job prospects than tier 1.
You overlook the fact that some tier 1 schools may not have great job prospects, either.
This is even overlooking the fact that the salary figures reported by USNews are patently unreliable. They reflect the salaries of those in private employment who report their salaries. At Michigan, if you have 85% in private employment and reporting numbers, the salary info is solid. But if you're at STTTate U, where 15% are in private employment and only half of those report, the odds are that the group that reports its salary is self-selected to report on the higher end. So you get a small, unrepresentative number that people latch onto.
People from lots of law schools get jobs. Some even get very good jobs. But when you figure the median salary in the US for people with BA/BS is pushing 50 or 60, you have to wonder whether it's a good idea to miss three years of employment (and pay for tuition) to come out with the opportunity to make a PD salary. That's not to say that there aren't T2 grads who do quite well (because there certainly are) but that, on the whole, it's a risky business.