Another one of those pointless diatribes that seem to come out of nowhere—which is to say, from the vast "nowhere" between the ears of the kind of person who tries to grub some esteem by making pointless diatribes—is that the American injustice system is prejudiced against the mentally disabled. Statistics suggest that the average criminal has an I.Q. of around 70 and is suffering from at least one unfashionable mental illness. I don't see any reason to disagree with that—but I don't think it's necessarily a Bad Thing.

Prison is a (much needed) filter on the gene pool.

Neither do I think it's effected by back-room social engineering on the part of politicians. Most of them count on the stupidity of the voting public (but only to a certain degree—they have to be smart enough to understand which spot on the ballot to punch) and insanity of organizations that will fill their coffers if they promise to legalize the private ownership of howitzers or turn the police on anyone who eats veal. As an aside, NRA and PETA members are members seem to suffer from the exact same mental defects, with but one significant difference:

Which side of the head they were dropped on at birth.

The apparent "prejudice" of the injustice system comes down to natural and inevitable causes: the reason that prisons are full of idiots is that only stupid criminals get caught. If a person is reasonably intelligent, he can make a decent living without recourse to crime—and if he decides to do something illegal, he's the sense to plan it well and cover his tracks. The unintelligent criminal, meanwhile, follows the same defects in logic in whatever profession he chooses, which results in failure. In criminal professions, this means incarceration. In legitimate ones termination—or, at the very least a career path that leads into a dead-end job:

1. Marketing—for the insane, if their condition is among the fashionable varieties of mental illness
2. Middle management —for the stupid, if they somehow obtained a college degree
3. Sales—for those who are both stupid and fashionably insane, if they perform certain distasteful favors for the marketing staff

Granted, there are people in all four of these professions (criminals, marketers, middle management, and sales) who are neither stupid nor insane. There are exceptions to every rule—but if the best you can do puts you on the same level as idiots and lunatics, it would be hard to argue that you're not exactly where you belong nonetheless.