So, it won't stop corruption, so why bother?
I agree. Similarly, they should stop reporting about the war in Iraq, as it won't stop it.
And the weather, as it's going to happen regardless.
I think the point to be made is "what corruption?".
The programme made plenty of suggestions but it didn't prove anything. I'd like to think that the BBC, non-ignorant to the damage they were about to do, would have at least required their "investigators" to dig some actual proof up before they made their ridiculous attempt at whistle-blowing.