>>and then you discuss
Starting with "For examples of this".
>>Supernational institutions like the EU and UN can do great things like this.
Well, give me some examples where corruption of a political system was solved by external organisations?
(And NOT in a military way.)
(The main benefit East Europe got was a pressure to conform with EU criteria to get into the trade union. That solved quite a lot, by paying the political leadership to solve their problems... This can only be done once. But Romania and Bulgaria got into EU without fulfilling those criteria, probably by bribing for the EU votes (as I understand it, a few large companies were sold cheap to French, Belgian etc companies). So corruption worked for them... not even here, with a big carrot, was it solved by the EU!)
Edit: I might add that the UN is infamously corrupt and many functions are taken over by dictators, working for their combined interests. (If you're Swedish, you won't read about that in your local media.) Hardly able to help anyone with corruption...