You should read Robert Kiyosaki’s Cash Flow Quadrant. Most people are employees, and have the mindset of being an employee, which is why they are not rich, nor ever will be rich. You do not get rich by leaving all your assets unprotected ... the first lawsuit will wipe you out. It is obvious that these people are not E (employees), S (small business owners), or B (large business owners). These people (at least the man) are I (Investors), and as such they(he) did everything to ensure that their(his) assets were protected. Nothing illegal, nothing shady. You made a MAJOR assumption that she was intrinsic to the creation of the wealth. If so, she should have had stock in the company herself, and put it in her own Trust. They were obviously savvy enough to know about Trusts, so the fact that she was not granted shares in the business tells me that she was NOT intrinsic to creation of the wealth.
I (Investors) with a lot of money can do a lot to protect their assets, but in the end nothing in this world is truly safe. The biggest risk now that it has been announced to the entire world that Ed has billions of dollars stashed away in these trusts is that hackers and governments will go to herculean efforts to track them down and steal them or seize them. I think that there is a good chance that Ed, his Russian mistress and his blond wife will all end up with very little.