Why should those countries emulate the USA model? Look at where that model is going now!
Just couple of factual examples:
Formerly communist China is creating more individual millionaires than any of the so called capitalist countries.
Formerly big government type socialist India now boasts some of the wealthiest industrialist individuals in world. British Jaguar is now owned by Indians?
Both country’s GDP has grown 3 to 4 times faster than USA in the last decade.
They can keep their millions as long as the government lets them.
Point is, not even the USA is emulating its former model. The USA is now emulating everyone else in the world.
And since you are calling Red China “formerly communist”, I’ll just ignore your platitudes now.