I thought everybody knew this?

From The BBC:

Millions of dollars earmarked for victims of the Ethiopian famine of 1984-85 went on buying weapons, the BBC has learned. An investigation found claims that a rebel movement in Ethiopia diverted the aid to fund its attempt to overthrow the government of the time. Rebel soldiers said they posed as merchants as "a trick for the NGOs"...

I don't mean Ethiopia specifically, I mean as a general rule, you can safely assume that a lot of aid is not spent as intended. Whether the aid agencies siphon it off, or it is stolen, or spent on weapons or the dictator's new palace, or ends up in Switzerland is a different discussion.