Yeah, except legally speaking the Prime Minister is the commander of the armed forces. Not the Crown. Regardless of which inbred, chinless wonder is wearing the magic gold hat, they shouldn't be doing anything for them. If the Queen, or Prince, or some minor Earl wants someone whacked or some journos roughed up, they should have to pay Blackwater to do it, like everyone else.
And yeah, though to be fair, I think the BBC Governor in question has a point. What was he meant to do, mount a police investigation all on his own? He negated the possibility the man could do damage in a situation under BBC control. While I think the BBC has a lot to answer for, not launching a criminal investigation into Savile is not one of them. But everyone will beat up on the BBC because, unlike the Met, the BBC don't fight back.