While people should follow the law, making the basis of the comment "these people are different from us!" is a bad idea. That mindset is the same ugly place that creates all the various -isms like racism. It is also usually a bit self defeating because it pulls attention away from finding win-win solutions that build a good world. Cultures that foster billionaires have tended to do better than cultures that don't; because billionaires are associated with vast amounts of incidental wealth creation. It doesn't matter whether any particular person is going to become one or not.

It is a lot more productive to focus on the unfairness of extremely wealthy people not following the law, the illegality of that and how therefore this is fellow is a whistleblower. And probably in dire need of some general support if he's gone up against the sort of people with Swiss bank accounts.