Which is less likely (one would hope) than via other methods, but the correlation is not as strong as we’d all like.
It'd be interesting to know how much this phenomenon would explain the stability of otherwise culturally ossified regimes that stood for four or five centuries before collapsing, where government was built almost entirely out of extreme nepotism in which the ruling potentate had 50 or 60 kids to choose from, and thus had a shot at picking the most capable from the, er, top of the class.
Or the most ambitious /ruthless pick themselves, taking the old man and/or their dangerously competitive siblings out of the picture.
Either way there is a little more competition involved then what we normally think of with a modern family unit.
Training makes up a lot for stupidity and other gaps.
At some point, it doesn’t matter enough, but that can go quite awhile.
Doing those things at scale is ‘work’ even if it isn’t what most people consider work.
Learning how to sweat a pipe is useful if that’s what you’re going to need to do to put food on the table.
Learning how to placate powerful sponsors, not get caught doing naughty things, and networking among other power brokers is how you put food on the table as a ruling elite isn’t it? Or at least avoid being burned at the stake.
And not something they’re going to teach effectively at your neighborhood public school.
Seems like a clear link.
That’s speculation though. What we do know is that the CCP is changing the way of managing the economy. Between 1992 and 2019 they leaned heavily on the private sector for growth. They would do anything they needed to help private enterprise succeed. That approach paid rich dividends, it’s obvious.
Xi Jinping is going a different way now though. He reckons he knows better than Deng, the architect of the Chinese economic miracle. His approach is to pick winners and losers. It may succeed because he’s picked good horses so far - EVs, solar panels, AI, semiconductors. And state led capitalism has had success in China, with major players like Huawei doing well despite major headwinds.
Because of this shift in approach you can’t extrapolate from the success of 2001-19 and say China’s future success is inevitable.