When the wives of stockbrokers start pawning clothes, you should take notice. When the Rothschild start selling assets, you better start preparing for something big. We can only assume where that money is going but hmmm... what else seems to be a nice thing to throw money at at this time?
The #1 thing they are probably investing in is life extending technology. Right now we all end up the dirt one day and all the money in the world hasn't changed that yet. They are hoping that they can eventually throw enough resources at aging to solve it.
Death is the great equalizer.
But if you're immortal, life loses meaning (assuming it have any to begin with). You become petty as a Greek god. But then again, maybe they already are.