He could set a million dollars on fire every day for the next 50 years and still have another million to spend that day.
Just wanna point out that net worth doesn't equal money in the bank. If he tried to convert his worth (probably NVIDIA stocks) to money it would be very hard and only a percentage of the initial worth (because of shares dumping).
What you are talking about is the operating system, not the cpu.
The ARM architecture allows much more performance for less power when compared to AMD64, because it runs simpler instructions.
The change to ARM chips on laptops will not make them work like phones, with the exception of much better standby.