Why is this woman never referred to as deputy priminister?

She made it law to refer to her by the much more impressive title of 'Leader Of etc."

Who wants everyone thinking of you as a deputy?

Because she is not deputy Prime Minister. She is Deputy Leader and Party Chair of the Labour Party, not the Government, IIRC.

Why is this woman never referred to as Mrs Dromey?

Equally, why isn't this woman being referred to as "Prisoner number 7499621"?

shortly to referred to as the defendant

Because the deputy prime minister is in effect, although entirely unofficially, Baron Mandelson.

You know the guy – he is a completely unelected politician, who twice had to resign from the government for having dodgy business dealings with dodgy businessmen and is now …… yep you've guessed it – Secretary of State for Business !

Sounds like he understands the world of business perfectly. The ideal man for the job.

so Mandy's unelected? Much like the rest of the house of Lords then (at least until recently) much beloved of Flashy and his ilk.
Big house in the country? few thousand acres? ancestor wiped Henry V111's arse? come and run the country!

MILF 😉

I fear it's more a case of New Labour 'understanding' that they can take the piss out of British workers and get away with it trailmonkey.

And get away with it they do. Unbelievably, some people trust the Baron who has his head up the Russian Oligarchs arses, more than they trust RM postal workers.