Nobody but you used the statement "artificially limit wealth" anywhere. Obviously the Japanese have some policies in place which discourage these social menaces from growing and taking over their political system. What's wrong with adopting some of those? Works for them, and doesn't impact their prosperity or standard of living in any way.

Did you read the comment that I originally replied to? Dude said that in plain text.

Japan is a funny case actually. Massive corporations play a big role there. Both historically and nowadays. Yes, those big corporations take care of their workers. But it doesn't change the fact, that the rich are barely limited in that country.