Until developing countries stops exporting raw minerals and import processed products at a more costly rate which is the order of the day that most of
African countries do they can't be talking about competing with the rest of the world because the world is a competitive place and until a country starts adding value to what they have such country will still be consuming and remains dependent on the rest of the world adding value in terms of production and processing of the natural and mineral resources through building of factories and industrialization which will lead to mass production and such countries becomes self sufficient developing countries will always depends on the rest of the world to survive.
Aside the exporting of raw materials and importing of processed products which is more like consumerism, these developed countries can also go into tourism.
You do not have to be focused on just one aspect only. Tourism and hospitality sector are one of the most lucrative areas that they can explioit.
And many countries that are the destination for tourists do not even produce any thing, they just have built their tourism sector that many people from around the world go there to just relaxe. Developing countries can do the same thing too. They have very beautiful areas that be torusits attractions and generate reveneu for the the government.
They should.