As for Cameron being a leader in tax haven reform, I don't buy it for a second. Words are cheap, what action has his government taken to tackle the issue? If anything, they've been at work to increase legal loopholes and tax breaks for the rich. Not only that, but George Osbourne's family company has been proven to dodge tax. When you've got people at the top this morally bankrupt, do you really expect them to fix the regulations to serve the public?
Cameron will talk a good game in the press, do the exact opposite thing and by then the press has moved on and no-one seems to question it... It seems quite surreal that we all sleepwalk through these lies, but we do.
If you want a good primer on our influence/investment in the financial affairs of overseas dependencies and tax havens associated with Britain etc... then the book "Treasure Islands" by Nicholas Shaxson is a good place to start.
If he is, and being a leader in the push for reform, what was on his agenda for BVI?