Simple answer: No one (probably not even you) expects them to be 100% correct*. If I am forcibly isolated and "helped" because their classifier uses 16 bit inputs from the temperature sensor and not 32, I wouldn't accept the shitty quality of life that I expect to have because my gait makes me fall more than 3 std. deviations outside the defined "average human being".
Paranoid corollary: By defining what is "not criminally psychotic", we are fundamentally influencing opportunities for reproduction. Thereby, the fitness function involved in natural evolution has an additional term introduced by those who decide what constitutes "normal". This leads to a severe risk of targeting a minority population with certain quirks as "criminally psychotic" and therefore 'cleansing' the population of this minority.
Due to the above arguments, I would say that even if you gave the "chosen ones" the best possible quality of life, this would have unforeseen effects of human evolution and I do not want to risk that. I agree that life is unfair, but being born with a propensity for crime is like having a handicap. I know this is insensitive, but having to give people in wheelchairs the same opportunities for employment possibly lowers overall productivity, but that is what I treasure in society - knowing that losing my legs tomorrow does not immediately turn my life into a total bag of shit - these rules would make my life suck a little bit lesser than it otherwise would.
* The criteria for "criminally psychotic" would be generated by psychologists (or other humans) or statistically which have the weaknesses of subjectivity and uncertainty respectively. Neither can be 100% sure of anything. Throw in the fact that we have no fucking idea whatsoever how many people with "criminal psychosis" actually commit crimes and I am really unnerved by Pre-crime detection.
Arguments based on culpability for your thoughts and human profiling are wonderfully described in almost every dystopian novel - I believe the required reading for your geek card (at least 1984 and Brave New World) ought to cover these arguments.