In recent months, people and their politicians around the world have been astonished to learn that big companies and billionaires will go to extraordinary lengths to pay lower taxes.

Thanks to the work of the International Consortium of Investigative Journalists, based in Washington, we have discovered that some of the most prominent public figures in the world have banked their fortunes in international tax havens, beyond the scrutiny of their national treasuries.

Meanwhile, Tom Bergin, my Reuters colleague, has become the scourge of the top U.S. multinationals by revealing their low effective tax rate in Britain. Mr. Bergin has found that between 1998 and 2012, Starbucks paid less than 9 million pounds, or about $14 million, in British taxes while registering sales of more than 3 billion pounds. According to statutory filings, Google made $18 billion in revenue in Britain from 2006 to 2011, and paid just $16 million in taxes.

Open the door to the top executives’ suite and you will hear howls of rage over the backlash these revelations have provoked. There is, from the corporate point of view, something a little disingenuous happening here. After all, countries, states and cities have spent the past several decades openly competing to set the lowest corporate tax rates in an effort to attract business. The fact that multinationals would respond to these incentives and turbocharge them with some international tax arbitrage is about as shocking as the discovery of gambling in Casablanca.

After all, as Lord Clyde observed, in a 1929 British tax case: “No man in the country is under the smallest obligation, moral or other, so to arrange his legal relations to his business or property as to enable the Inland Revenue to put the largest possible shovel in his stores.”