The Marines don't brain wash as much as they tear you down and make you start thinking on your own. It's actually quite a big deal that they down't want drones, but rather people who think outside the box and come up with creative solutions. If you're a mindless lemming who also follows orders and subject to "brain washing" you will fail in the Corps.
It's organization. Damn you can't even friggen cut and paste.
Oh and the best scene was:
Charlie Hinton: Hey man, how did it go in there?
Max: I missed.
Charlie Hinton: Missed, what does that mean?
Max: I missed.
What are you going to dump a beer on my head, point me out at the bar, and feed me warm potato salad off the hood of a car? Or to you just want me to kill myself?