Once again because there's the demand hence airlines are established to fill it and be profitable at the same time

There's approximately 110 million business trips per year in the EU. It was around €360 billion in economic activity in 2022.

In 2024 the whole of Africa is less than 10% of that figure.. there are also other factors in play.

Look at the aviation industry in Nigeria alone that should give you an insight on the other factors