There is no common definition of what a tax haven is. Everybody has a slightly different definition. Ultimately what a tax haven provides is escape from the rules and the laws of jurisdictions.
Tax havens are also about ‘elsewhere’ – the laws of the Cayman Islands as an example are not designed for the benefit of the 50,000-odd population of the Cayman Islands. They are designed for people who live in the United States, Europe, Africa, Asia, Australia and so on. Hence the term ‘elsewhere’, or ‘offshore’, is fundamental to what a tax haven is.
Essentially, then, tax havens are about wealthy individuals and corporations taking their money elsewhere to do things that they wouldn’t be allowed to do at home.
They are there to circumvent the laws of their home country by bending the rules, or shall we say finding the large holes in the fence of sovereign government's tax laws.
Ethics have nothing to do with it, its all about minimizing liability by bending the laws. Its greed nothing less, people who partake in these schemes have no respect for the countries they live in.
As we are seeing, government leaders even put their snout in this trough.
Its all about what they can get away with!!