I "think" I get what the original poster was trying to get to....now this didn't happen in Disney, it actually happened up here in the "great white north" BUT
I was on a bus trip and there was one guy who would eat about 1/2 a meal and then call the waitresses at whatever restaurant we were at and complain (not quite what he ordered, too cold, could taste onion, etc), so they would do whatever they had to do and not charge him for a meal he wasn't satisified with before he made a bigger scene. About 1/2 way through the trip, one of the people on the bus mentioned something about why he always seems to get something that doesn't taste good or there's something wrong with, but the rest of us have been lucky. His statement was "Oh, I learned to do this years ago - I get to eat but never have to pay for a meal. There really wasn't anything wrong with it at all"

I was totally gob-smacked (as were a lot of other people on the bus tour). After that, most people didn't even want him sitting at their table for the rest of the trip....I know that sometimes, the waitresses have to cover the cost of the unsatisified customer (but probably not at Disney) but they do have to suffer the humiliation and complaining....
Am I on the right track here, or did I just have a major de-railment?
Is what you're saying that if people WITHOUT legitimate complaints weren't compensated, then the price of things "could" be cheaper??