BBC news priorities - Lord Ashcroft vs Lord Paul

'Tory donor Lord Ashcroft gives up non-dom tax status' screams the BBC headline. The article starts:

'Lord Ashcroft has given up his non-dom tax status to stay in the Lords, it has been confirmed.
...
Lord Ashcroft, a Conservative deputy chairman, revealed in March he was a non-dom so did not have to pay UK taxes on most of his overseas earnings.'

So that's the BBC making sure that we know which political party Lord Ashcroft is an important member of and that he was not paying tax on part of his worldwide income.

If we read right to the end of the article we read this:

'Labour donor Lord Paul has, like Lord Ashcroft, said he will give up his non-dom status to keep his seat.'

So why is Lord Ashcroft's decision headline news and Lord Paul's identical decision an afterthought? Is there any reason other than anti-Conservative bias on the part of the BBC?