If everything was just about absolute numbers, there would be no profession of Economics. You can't simplify FDI like this and also make such a strong conclusion based on that simplification.

Example:

''In 2013, the Obama administration belatedly began to address Africa's electricity shortages and access problems through its Power Africa program. Power Africa promises to be more socially inclusive, address access issues, finance off-grid energy and put a premium on green energy.  

The program offers a mere $7 billion for energy on the continent, but has had trouble getting off the ground, and China has already invested five times the total amount earmarked.''

(the hill)