It's not just changing the law of a country though, I'm pretty sure some degree of private property is in the Human Rights and would require changing international law. Not to mention it would open a whole another can of worms.
And by the way, I wasn't talking about re-investment, more like those CEOs funneling all of their money into some backwards fund or hiding it with fake IDs, You can't accurately seize assets if those "assets" can be hidden or saved somewhere else. They just pass off as bankrupt, lose their debt and get buck in business with the same money they had before.