The former colonial powers as a result of the wealth they obtain from processing primary products, get super net profits that they plough back to the former colonies.
Pollution has adverse economic consequences.  Investors shun places that are polluted.  Employees get stressed in polluted areas and their absenteeism from work skyrockets as a result. 
Columnists
By Reinford Khumalo Feb. 15, 2023
As I went through this article, my attention was immersed on looking for the reason for this condemnation of the university in this manner.