What are examples of those 4bn+ stores of value then? I was thinking of something that can be easily moved around - e.g. 400M in gold is 10 tonnes. Not super handy. Stocks, currencies, real estate - those are cases when you trust somebody else to take care of storing your value, most often the gov. Not trying to make an argument for my example here, just sincerely curious what those stable store of value can be.
If you have 4bn, you own interests in many companies, many funds, direct physical properties, property funds, etc.
If you have 4bn, you don't "move" money around at that scale. You move small fractions around. And in terms of what you can spend... aside from the occasional private island purchase, there's really not a lot you can spend significant fractions of that worth on.
Enjoy a little exercise. Imagine you have 1bn to blow. Google for things you would desire. Unless you want to try to buy a block of SF, you'll find it hard to spend more than a few hundred million at once. How many 100+ meter yachts can you use? The nicest Gulfstream global jet is about 100 million nicely equipped. A used Boeing jumbo jet is even less...
It's actually hard to spend that kind of money unless you basically give it away.