Companies like ITT specifically target military service members because they are:

1) In their twenties and looking to start a career outside the military.

2) Eligible for a variety of loans, grants, and other financial services unavailable to the general public.

3) If they are still in the military, they will have much lower default rates as the military takes debt very seriously (as a representation of character really).

(IMO) none of these qualities are unfavorable to traditional institutions. Companies like ITT are 100% vultures.

source: many friends in the military