I mean how do you completely eliminate corruption in government ? That’s tough. Chinese imperial system in the past struggled with it, I’m sure they have thought about it and came up with certain measures. Afterall, at that times corruption can bring down the whole empire, many dynasties definitely tried to learn from the previous ones before it to learn from mistakes but it’s still impossible. American way is to legalize it with campaign donations, lobbying, presidential perks etc. debatable whether it’s good on the whole or not. Singapore way is to give their ministers especially the PM ridiculously high salaries compared to other countries. Anyway, it’s a tough one. As for Qin, it’s even harder to eradicate a man‘s horniness, you can say he is weak and not good character but let’s face it, every man with at least some sex drive and normal hormones, gets tempted once in awhile and maybe more.
Singapore's Civil Service high salaries is as much an anti-corruption thing as it is an issue of attracting talent to the civil service.
Larger countries have (usually) a larger populace to draw patriots from. The larger the population base, the more likely you are to have someone who is capable and willing to do the job of a large MNC CEO but at a fraction of the monetary reward.
Which is basically what the ministerial pay in Singapore is all about. How do you attract C-suite type ability to "serve the nation" at a fraction of the pay they can otherwise get in the commercial sector?
Prestige? Being top dog of SG is nowhere near as prestigious as many other countries. It's in fact a non-stop balancing act of sucking up to both east and west while satisfying a majority mandate that expects them not drop the ball ... the public has zero tolerance for public service failures.
Post public office kickbacks? Like US presidents doing $100mil speaking tours after their presidency? Signing $65mil book deals? I laugh when people say that POTUS is only paid only $400k in office - there is no such kickback scheme within the Singapore context simply because there is no large enough population/economy for such.
My observation at the lower rungs of associations and NGOs is that where you have people working, supposedly for the masses, on a voluntary basis is where you need to look out more for abuse of power and corruption. Yes, it exists in Singapore.
To draw a parallel to another ancient vice - the sex trade is illegal in Singapore but yet there are areas where they operate openly ... the same approach to managing the sex trade is the same with corruption (avarice as a vice). You can never eradicate it ... so you manage it.
I've always enjoyed taking out-of-town visitors to certain parts of Singapore where hookers and brothels line the street. The law that solicitation and brothels are illegal in Singapore and the image of Singapore having a straight laced government is easily challenged by this one excursion.
The idea is that too heavy a hand drives everything underground. When it is underground, the stakes are higher so the transgressions and criminal elements become worse. Giving it an outlet within defined boundaries helps take the edge off, making extreme transgressions very unlikely and easier to spot as those content with the open crumbs will dob on those rocking the boat too much.
So what happened a few years back, some pimps got cocky and abused an anti-vice officer (they slapped a female ASP). The ensuing operation swept the streets clean in a clear demonstration that the lines had been crossed. It's slowly coming back by covid years effect on cross-border movements. (The vast majority of sex workers are not local)
The solution is as you say, legalise it in some ways, close your eyes in some other, draw boundaries (written or unwritten) of what is acceptable or not acceptable and then throw the book ever so often at transgressors to remind everyone to stay within bounds. 杀鸡儆猴. Sounds familiar?