> what is the point of privatizing something when the structure itself doesn't change and the privatization does nothing but siphon money out of the system and pump tax money in anyway?

That is the point.

Gigantic projects like nuclear reactors, stadiums, high ways, bridges, airports (hallo Berlin) trains (and big software projects and wars, too) are just different ways of funneling a significant percentage of the tax payer money funding the project into the politicians' and decision makers' circle's wallet.