The way the question is asked suggests that the you(the asker) assumes that there is usually no money circulating in Africa -well, There is.
If the question is referring to the financial aids that the "developed" countries obsessively force upon African countries, Then obviously that money will do more harm than good. The reason for that is simple: because these "developed" countries make huge profits out of these aids. How? Because at the heads of many African nations are puppets that would do anything for these "developed" countries, And do not care about Afrikans. They fill their pockets and pretty much give up the natural resources of African countries for free.
These financial aids are just a cover-up for what is really going on under the covers. The truth is that without Africa. The world would not be what it is today.
Think about it, Why would they finance the development of Africa? Clearly there are no benefits for the western world if Africa developed itself[. . . ]?
That money is just a distraction.
So many people who are poor now do a lot of crimes such as kidnapping and even killing for money well, As they say the love for money is the root of all evil. Poverty can lead someone into committing so many crimes and is all because he/ she may need money to live a better life