I believe your position is derived from one with an almost heinous lack of empathy.
Human beings are all equal. Each life is worth just as much as another. This is a fundamental fact of life. Not a single one of us was created in any way different than any other - human procreation itself is the grand equalizer. Where once was a man and/or womans pleasure, is now another man and/or woman. From that source, we are all derived, and thus: all equal from birth.
The 'value' that "Africa" has, is completely and utterly arbitrary. The arbitrary nature is derived entirely from cultural ideas and ideology, which worth is also completely arbitrary, depending on its proponents ability to carry the idea forward. The idea that Africa is 'poor', that Africans are 'uneducated/uneducatable' and so on .. these are just ideas, not based on any real fact.
The fact is, any kid in African Village #21239 has just as much human potential as any other kid in the world.
Life itself, is the rarest substance in the universe. What Life, itself, decides to do about that, is derived from a near-infinite ability for Life, itself, to decide. Once "African Village Kid, Age 9" starts learning to code on the Linux Kernel, for example, the ability to decide, equally as a species, can be observed.
And it is this fact on which 'equality' and 'worth' depend - nothing else.