Why not?
It works like a building loan. You get some money… then you build. An inspector comes, checks that it is up to spec… then you get the next bunch of money. That inspector is appointed by the World Bank… he’s not appointed by the ANC.
The whole thing reminds me of the film “Dave” (excellent film by the way), where the main character (someone who is impersonating the president, played by Kevin Kline) at one point points out that if they take the budgets from a few less important departments, and put it in an ordinary savings account for a single year, they can fund a particular charity. One of his advisers points out that putting money in an ordinary savings account is not how the government does things, and Dave asks: Why not?
Why can’t this be treated like the building loan of every home owner who built his own home?