it does require going into some of their personal details to understand why they say what ever they do say.

For example, Belgium has a very socialist type government and taxes for some can be as high as 70%!!!
A "way around" the taxation for some business folks is to have a car provided including all the gasoline and servicing and a replacement every two years.
This is just one example of how some work around the high taxation environments. There are as many creative "schemes" as there are individuals.

Whether they achieve parity with other lower tax environments, I have no idea. What I do know is those I knew with such arrangements lived extremely well in Europe.

btk