I think that the reality is that 1%ers, socialites, and intellectuals don't see theme parks -- even Disney -- as the kind of thing that they're going to spend their money on. They spend their money on the stuff that rich people spend their money on -- Fancy houses, yachts, mistresses, nightclubs, international travel (not to theme parks), etc. Theme parks are a middle class hobby. Its a simulation of luxury -- not luxury in itself. Its like going to a chain restaurant in your local shopping center that simulates what its kind of supposed to be a fancy restaurant -- its not actually the quality of a 5 star restaurant in Manhattan, but it tries to act like it to save people money and travel time. The regional parks try to be as affordable as possible, and Disney tries to convince middle class families to save up and let Disney be what they splurge on.
Yes, Disney would welcome 1%ers in with open arms -- and yes, some will go to Disney -- but the supply of 1%ers willing to go to Disney is finite, and much smaller than the legions of people that Disney needs to fill their parks out. That's where the middle class comes in.