Which is why, as this NBCnews.com article makes clear, no American fat cats have been identified so far in the Panama Papers. A fact that is sad enough to be sure, but not necessarily where the whole focus ought to be.
As I've already stated, a good number of folks with money want to make sure that this fact is as camouflaged as it can be; and in that category politicians are a prime example. You may have a very nice feather bed set up for yourself now by various supporters, but you certainly don't want to advertise that fact.
As to our tax rates as compared to the rest of the world is concerned, however, that in itself is shame with a capital s. With so much that is important to how this country functions as a viable social entity going begging, does our lack of tax fraudsters, even if it were true, really represent something we ought to be proud of? I don't think so, and I can't imagine you would either.
Just remember: Greed as a Weapon of Mass Destruction works in many, despicable ways.