> Also, the mountain of cash hidden in all the Dutch and Luxembourg trust funds coming from this tax structure is not being used to contribute back to society in a meaningful way like Gates and Buffett.

Not really an excuse, but at least since 1990s, that was very common among the European rich.

Psychologically, it's easy to justify: the state takes about half of your hard-earned cash, then passes it on to a bunch of bureaucrats in Brussels who have not done a damn thing in their lives. On the other hand, before everything became computerised, stashing the money in Luxembourg was way too easy.