A small but very revealing piece of BBC bias at PMQs today

Listening to the BBC 5Live coverage of today's PMQs it was noticeable that the reporter, Rob Orchard (?), decided it was important to inform us that Sir Peter Tapsell used to be a stockbroker. Why give us this fact, why is this relevant? Does this reporter ever introduce a Labour MP with information that they have never had a job outside of politics? To my ears he seems only to repeat their name and party, so why the special treatment for Sir Peter Tapsell?