Unfortunatley about 68% of them need to pack skips with old cardboard and newspapers as their 'to serve' level suits that job requirement to a tee.

You cant train someone to be bright or compassionate. Intelligence is too broad a word to even use when dealing with them in their group mentality state.
Alone and in public some are quite ok with high IQ's but they soon get moved to higher tasks out of uniform once they are found out .