It sure must be nice to fly into Malta on one’s Lear jet and to get the royal treatment.
Of course the real issue here is that governments want to make sure they can extract as much wealth as they possibly can from people most would consider “rich.” It seems questionable, according to the attached article, whether the issue is tax “evasion” (illegal) or tax “avoidance” (legal). That is an extremely important distinction.
(From The Guardian)
In exchange for donations to a sovereign trust fund, or investments in property or government bonds, foreign nationals can become citizens of countries in which they have never lived. Other schemes, such as that operated by the UK, offer residency in exchange for sizable investments.