I would say the "cultural difference" is even encouraged by the school in a subconscious way to the students. It makes them feel "privileged" or "special"
(I know my word choice will upset some but I can't think of more appropriate words right now but my point is got across) - which is part of making them believe that what they are paying for is worth the money.
Have you ever noticed when any of the big integrated schools have problems - which they do just like every other school - there doesn't seem to be any of their students vocal about them - they're almost robotically loyal to the school.
I think it's become one of the only ways as in recent year the output from the quality of output from the integrated schools has declined and the job market has become more level between modular and integrated and the price disparity seems to have got wider.