For example Soros did not borrow ten billion pounds and then sell them for dollars, yen and marks to devastate the UK economy. Instead he did so because he knew the pound was overvalued and that it would soon have to be devalued.
And when he was shorting the dollar he did not do so to break the US economy. He did so to make a buck. CT's are the ultimate capitalists. They care nothing for Governments they are the anarchists.
Private property is the foundation of capitalism, not greed as so many anti-capitalists would have us believe. I think a better term for currecy traders is speculators.