The World Bank advocates that strong leadership, good policies and sound institutions can address the problem of quiet corruption. I really want to believe in this but I simply cannot. Why? Well, policies or anti-corruption reforms are endogenous to institutions such as the legislation, the political parties, etc. More importantly, institutions are endogenous to the distribution of political, economic and social power in a society. So if you observe a problem in a given period of time in a given country, then please do accept that there is a good reason why that problem exists. This should help you become more humble when you propose a solution. Pessimism prevails because what the World Bank can do is very limited and the staff knows this very well... Neverthless, I am personally thankful for the intellectual debates they start.