It's the Broken Windows Theory, the idea that when something is not properly maintained, it encourages petty vandalism and other bad behavior.
Although the theory dates back to the 1980s, it's a concept Walt Disney well understood when he opened Disneyland in 1955.
Quoting Walt:
"When I started on Disneyland, my wife used to say 'But why do you want to build an amusement park? They're so dirty.' I told her that was the point, mine wouldn't be."
Quoting from Walt Disney, An American Original:
Disneyland's Town Square "would be a place with flower and balloons, costumes and a brass band. Handsomely wrought surreys, a fire wagon and a house-drawn trolley would take people down Main Street and to the rest of the realms. The vehicles would not have enough capacity to make a profit but they contributed to the entire experience. Walt insisted on fine furnishings for the restaurants even though they would be serving reasonably priced meals. He believed that if a family sat under a $50,000 chandelier and ate good food at a fair price, their experience would add to their enjoyment of the park."
Walt understood that if you treat the customer with respect, they'll treat your business with respect.
If you charge them outrageous prices and heard them around like cattle, they're going to be demanding and behave like cattle.
It's a concept completely lost by today's corporate Disney management.