While Milligan's sketches often faded into incomprehensibility, the Pythons' tighter material was saved from a similar fate by Terry Gilliam's animation links.
That there even exists a market for Americans to minimize their tax obligations overseas speaks to the intricacy and incomprehensibility of the Internal Revenue Code as it stands.
The old code's very incomprehensibility and Draconian levels (taxes exceed the national income) played into the hands of local mafias that would demand protection money to keep tax collectors at bay.