Well reassurance without guarantees is like tactics without strategy the noise before a wealthy individual being dragged off his yacht as it is being "seized" as you stated, temporarily. The primary focus of the ruling class is preservation of wealth not extraction, extraction is but a means to preserve wealth if there was a more efficient means of wealth preservation, extraction of value from the poor wouldn't be considered, as the wealthy fear pitch forks even in the halls of power of individual states no matter how powerful, that fear exists. The fact that the intention/ attempt has been articulated to seize the assets of the most powerful military power on the planet. Do you really think that though there have not been any very large withdrawals the patrions "believe" their wealth is safe knowing they don't posses nuclear weapons? Considering they could be the next Venuzuela, Iran or Afghanistan, all that would be needed is an accusation not even evidence.