What exactly do you define as 'ultra-capitalist'? Could you name a few such countries, just so I understand what you mean here?
Mine, for example. A little bit less now than 20 years ago perhaps, but still much more plutocratic than the US.
So your definition of 'ultra-capitalism' is plutocracy? I think the more plutocratic a society is, the less possible free markets are - and the lack of free markets is antithetical to any kind of real capitalism. I would call such a country 'faux-capitalist', not 'ultra-capitalist'.
Crony capitalism is no more representative of "capitalism" than rigged elections are representative of "democracy".