the economic loss to Mali suffered by the fact that they cannot compete against subsidised US cotton and EU beef is less (which is against the WTO rules) than the amount of aid they recieve...
Yes, it's sad. There are many other examples of countries in Africa suffering despite their potential wealth. Guinea comes to mind. It's the world's second-largest exporter of bauxite, has fewer than 10 million citizens, and is among the poorest countries in the world. Makes one wonder where all that export money is going...
International organisations turning a blind eye to the super powers.. So who is corrupt again?
I'm not sure I'd call that "corruption", which is to seek personal gain illegally by taking bribes, blackmailing people into paying protection money, and the like. I don't think that international organizations (by and large) are taking money from the super powers for turning a blind eye, or that the super powers themselves are corrupt. (Who would be paying them?)
"Exploitation" is probably a more appropriate term than corruption. Not that this would make it any prettier...

Ever since the first white people set foot on Africa, it has been Africa's role to enter into trade arrangements that are to its disadvantage. In that respect, little has changed since colonial times. Having said that (and read Meredith's book), I have to say though that quite a bit of the damage is self-inflicted. By many measurements, many of the former colonies were better off under colonial rule. Things such as literacy, life expectancy, infant mortality rate, and average income have often declined since decolonialization. Little wonder: the history of Africa over the past sixty years is a depressing litany of demented dictator after demented dictator inflicting inestimable misery on the population

There are only very few examples to the contrary, among them Senegal and Ghana. (But even Kwame Nkrumah did some things that were decidedly on the wrong side of democracy and civil liberty.)
The western world clearly has a lot to answer for when it comes to Africa's poverty and human rights problems. But so does Africa...
Cheers,
Michi.