Life would be simpler if morally objectionable things like corruption also had unambiguously negative economic consequences

Life would be simpler if morally objectionable things like corruption also had unambiguously negative economic consequences. But the reality is a lot messier. Looking at just the last half a century, there are certainly countries, like Zaire under Mobutu or Haiti under Duvalier, whose economy was ruined by rampant corruption. At the other extreme, we have countries like Finland, Sweden and Singapore, which are known for their cleanliness and have also done very well economically. Then we have countries like Indonesia that were very corrupt but performed well economically. Some other countries - Italy, Japan, Korea, Taiwan and China come to mind—have done even better than Indonesia during this period, despite ingrained corruption on a widespread and often massive scale (though not as serious as in Indonesia). 

H. Chang, Bad Samaritans (2007), 162

Everything from this period was bad for the reputation of Belgium! So they showed nothing.

There was a rule in the Foreign Ministry archives. They were not permitted to show researchers material that was bad for the reputation of Belgium. But everything from this period was bad for the reputation of Belgium! So they showed nothing. 

Jules Marchal, cited in A. Hochschild, King Leopold's Ghost (1998, 2006 edition), 297-8

The effect on anyone who read those stories could be only that of overwhelming horror

And so the statements [on the atrocities in the Congo] continue, story after story, by the hundreds. Here at last was something the rest of the world had seldom heard from the Congo: the voices of the Congolese themselves. On few other occasions in the entire European Scramble for Africa did anyone gather such a searing collection of firsthand African testimony. The effect on anyone who read those stories could be only that of overwhelming horror.

However, no one read them.

Despite the report's conclusions, the statements by African witnesses were never directly quoted. The commission's report was expressed in generalities. The stories were not published separately, not was anyone allowed to see them. They ended up in the closed section of a state archive in Brussels. Not till the 1980s were people at last allowed to see them.

A. Hochschild, King Leopold's Ghost (1998, 2006 edition), 255