^^ Good point Barakaboy.
Although, for example, Angola benefited immensely from oil...
How times have changed. Today Angola can now boast of a booming economy - forecast to grow 12% this year - and a growing regional and international diplomatic profile.
Angola's physical transformation since the end of the war has also been immense.
Oil revenues and associated Chinese loans have bankrolled an ambitious national reconstruction programme of roads, airports, bridges, hospitals and schools.
In the sprawling cities, where the war-weary sought refuge during the height of the conflict, urban slums are being given a facelift.
......the country still looks like this.
Despite the country's rapid economic growth - rated as faster than China's during the past decade - it is estimated that up to half the country still live on less than $2 (£1.25) a day.
There may be vast new housing estates with neat gardens and swimming pools springing up around the country, but for the majority of Angolans, home is a shared bed in an unpaved, overcrowded slum with limited access to running water, sanitation or electricity.
Unemployment remains stubbornly high and despite huge investments, the roll-out of mass education is yet to yield tangible benefits. Health services also remain severely limited. This is due to a lack of skilled professionals as well as pervasive corruption.
Rates of child mortality have decreased significantly since the end of the war, but one in five youngsters still die before their fifth birthday and the country remains near the bottom of the United Nations Human Development Index, ranked 148 out of 187 countries.
"In 10 years of peace the government has not delivered a true peace dividend to the Angolan people," says Paula Roque, a political analyst and Angolan expert at Oxford University.
"It makes no sense that Angola should continue with the level of poverty we are seeing when there is so much money coming from oil."
The family of President Jose Eduardo Dos Santos controls a large chunk of Angola's economy