The key difference between the standard sales techniques when they're used by ITT or by any other organization is that ITT was making promises it couldn't keep. When I get the hard sell about a new car, at least I get a functional car even if I overpaid. If I take out loans to attend ITT, it's likely the training won't help me get a job.
I've never been in the military, but from what I've heard from those who have, this is exactly what military recruiters do. They tell people they will get $XX,XXX signing bonus, but the reality is only a tiny portion will pass all the required training and get placed in a specific type of unit to get that money.
Granted, there a lot of real benefits that they can sell recruits on, but recruiters will tell every 18 year old that they can be in special ops when its not the reality.
Some of the most remarkable people I've ever met have served in the military. Far from being "suckers" they are people who felt a deep desire to serve the country in some capacity.
I know at least two people personally who signed up in the Army immediately after 9/11 knowing full well that they would likely be sent to serve in wartime. One of them didn't come back. He was in his 20's.
I'm going to suggest to you that you consider your audience much more carefully. I enlisted in the Navy and later graduated from Harvard with a degree in Computer Science. I can assure you that I didn't feel like I got suckered into anything.