Sure, blame the Aussie
There's no denying it though, is there? Murdoch came from moderate wealth (he actually was educated at the top school where I live) and had a leg up in the newspaper business through his father, but what he's built in the decades since is obviously vastly beyond what he started with. Very intelligent, but ruthless and of course pretty loose in his ethics. Unfortunately too many others have followed his example.
However in regards to Disney I actually don't think Walt would like what has become of his company. I'm sure he'd be pleased with its success, but the way it has swallowed up a lot of other creative endeavors and imposed upon them its own narrow image I think would be offensive to a man who was an artist and innovator at heart.