I'm afraid your very wrong in your various assumptions. The fact is that surplus funding was allocated to the world cup and the various structures surrounding the world cup. In fact, policing is to be increased for the event only at a cost of mere billions. The housing budget pales into comparison of the budget allocated to the world cup stadiums and the sub projects around the world cup. The World Cup and the Gautrain jointly enjoy the biggest budget cut in the country - for 2 years running now.
You cannot with a straight face claim that this event is honestly worth the money being spent on it when the country has a quarter of its employable work force unemployed. The fact is infrastructure collapse is imminent not only due to money shortfalls in budgets, but also due to factors such as shortages of cement (because all the cement in the country is prioritised for stadiums and gautrain).
We are in the midst of an economic crisis but strangely the only thing on anyone's mind is how to keep FIFA happy. **** FIFA. The world cup makes them billions - that's the only damn reason they do it. Every single thing they do is aimed at making them money, so as far as I'm concerned, the guarantees anyone offers should be to the South African citizen first, and to FIFA a distant second.