It's all that hot air they generate
Illinois Old State Capitol : Springfield
2 hours ago
'The impious cannot enjoy that they have, partly because they receive it not as at God's hands, which only consideration maketh temporal blessings comfortable, and partly because through error, placing it above things of far more price and worth, they turn that to poison which might be food, they make their prosperity their own snare; in the nest of their highest growth they lay foolishly those eggs out of which their woful overthrow is afterwards hatched.' (Hooker, Laws of Ecclesiastical Polity, Volume II, 415-416)
The worrying thing about the Chongqing case is that there are hundreds and thousands of little Chongqings across the "People's" Republic of China, and it would be a bold, or a foolish, person who thought that the same sort of massive scale corruption wasn't going on in all these places.
The country is rotten through and through, and those unable to stick their head in the trough are bound to create ructions sooner or later.