LauraNorder, a good many NGOs - a dd worked for one for many years, inc. in several disaster zones - do take care that money is not diverted into corrupt pockets.
This is one reason, I’ve always gathered, why a multinational variety of staff are used in any senior position where a local person could be subject to pressure from an official, or e.g. a village elder. Dd has experienced just such a case - threatening behaviour from a village elder towards inhabitants, to make them hand over half the cash they were being paid to help with the clear-up operation. (This was after the tsunami of 2004.).
After bitter complaints from the workers, a visit to that elder ensued (he was a scary bloke with a rifle!) where he was told very firmly that unless this stopped at once, nobody would be getting any money at all.
It stopped.
Admittedly, government corruption could be harder to deal with. They had to wait several weeks for the vehicles that were urgently needed in devastated terrain, because they refused to pay the bribes demanded by customs. Who did eventually give in, once it dawned that they were flogging a dead horse.