tax evasion

I have a question about offshore tax havens that no one has ever been able to answer. Can you name one legitimate reason to keep your money in a tax haven? 

The media keeps implying that there must be one. They keep pointing out (mostly to avoid the libel laws) that using a tax haven does not necessarily involve illegality or “wrongdoing”.

But what form of activity that isn’t wrong could possibly involve stashing your cash offshore? And why should we shy away from saying that starving the public purse of money is itself wrongdoing?

Britain's socialist Labour leader Jeremy Corbyn said the Paradise Papers, 13 million files leaked files that expose how the rich and powerful systematically evade tax, shows “one rule for the super-rich and another for the rest". 

French economist Thomas Piketty argued in his bestselling book Capital in the Twenty-First Century that capitalism arose from feudalism and is in many ways reverting to it.