Is that not enough?

Obviously there would be far more poltiical diversity, some of it for the worse, some of it for the better.

Consider Haiti, which is a US protectorate. The US has repeatedly removed regimes it disapproved of, such as the Duvaliers, and repeated installed regimes it approves of, such as Aristide, with the result that who ever is in charge does what the aid NGOs tell them. Observe that under the Duvaliers, there was electric lighting and human feces were buried rather than running down the streets.