OP is talking about corruption which is orthogonal to being a dictatorship. In fact the least corrupt subsaharan country is (by far) Rwanda, which is a de facto dictatorship.
And the impacts of corruption/cronyism/clientelism are not just money being siphoned at the top. It completely breaks any fair competition wether it's in economic markets or for jobs. Businesses don't succeed based on how competitive or innovative they are, simply based on who their founder knows and how much they're willing to pay in bribes, so your economic development stragnates. Important and influential positions are awarded not to the most competent but to the richest.
Opening a small business requires you to bribe dozens of people, and good luck if you need to import or export goods.
And the impacts of corruption/cronyism/clientelism are not just money being siphoned at the top. It completely breaks any fair competition wether it's in economic markets or for jobs. Businesses don't succeed based on how competitive or innovative they are, simply based on who their founder knows and how much they're willing to pay in bribes, so your economic development stragnates. Important and influential positions are awarded not to the most competent but to the richest. Opening a small business requires you to bribe dozens of people, and good luck if you need to import or export goods.