Who suffered consequences for getting Iraq wrong, or the financial crisis? Fortune passes everywhere.
When looking at some German Epidemiologist blog I found something like: "Next thing on the list is to proof that government measures worked"
I would have expected something like: "I'm looking at data - and want to find out what helps"
Yes, but in a vastly different degree, China goes to an extreme of making it political and look good.
In US, most leaks don't look good. Sure, US tries to make some problems look good, but they don't try very hard (or there's more balance in how an issue is investigated with multiple different parties).
A one party state means that there is no pressure from political opponents (political battles inside the party will never trump the party itself). And there is no pressure from journalists - China has the worst score for press freedom [1] (bar Eritreaa, Turkmenistan and North Korea) with a downward trend over the last decade. If there's no one to hold your feet to the fire, there's little incentive to self-incriminate.
In practice, Xi went on an 'anti-corruption campaign' that purged all his political enemies from power as his first initiative. The exact opposite of what your theory predicts, and actually a stronger cyclical purge than our typical repubs->dems->repubs one.
https://en.wikipedia.org/wiki/Anti-corruption_campaign_under...
As far as which culture has more healthy accountability.. plenty of corruption to go around on all sides, the comparison would be pretty nuanced.
I'd say that China has a lot more low-level corruption, as a bigger % of their economy, what with large swaths of the country being pretty third-world, but also more accountability for senior people who fuck up badly. They executed a baby food exec who poisoned kids, while nobody saw a day in jail for poisoning the city of Flint. Rick Snyder probably has a nice lobbyist job.
Or, look at Covid -- the mayor of Wuhan and governor of Hubei were sacked over their poor initial handling. Is NY gonna elect a Republican over it? TX elect a Democrat? No way in either case. Maybe we have less accountability in some ways specifically due to the 2-party system's polarization. Arguably Trump lost over it, but the guy literally got covid, right before the election, after downplaying it for 6 months and still got the 2nd most votes in history.
I mean, whoever they replace the mayor of Wuhan and governor of Hubei with will certainly still be members of the Chinese Communist Party. NY and TX might not flip their governing parties, but I'd be much more willing to assure you that the process of choosing their replacements will be more transparent than that for Wuhan and Hubei.