You are confused about the role of the BBC. It's not there for state propaganda ( though that happens - as with any broadcaster ), it's mission is more parentalistic - ( Yep I've invented a word to cover maternalistic/paternalistic. )

Ask yourself - if the BBC was such a state machine - why do members of the government complain about it's output so much?

It's there to lift the nation culturally, to create a British identity and social cohesion - to inform, educate, and entertain. To be a positive inspirational force.

It's not a single entity, with a single voice - but a sum of it's employees.

> For every Murdoch there's a dozen other channels,

I'm not sure quantity is the best metric here....