it is 100% a tax-avoidance scheme, they occasionally spend that $ wisely...that $ would 100% be more effeciently spent if done via a properly coordinated/supported government effort.
that being said...in the Land of the Free...considering how shit is run I 100% understand why so many of these people keep as much of their $ as possible out of the feds hands. the ratfucking doesn't stop when Dem's are running things, it's just slightly better hidden.