If Corporates can offshore their IP I should be able to offshore my likeness and rent it back to myself to reduce my personal taxes.
The reason it's worth it for these companies is because the number of zeroes involved. The legal costs are a rounding error for them.
By and large the IRS wants to squeeze you for what they can get, not burn up a bunch of public resources convicting people and hindering their ability to earn more money for the IRS.