Immortal trillionaires.
Of course, it will be Stem Cells as a Service. Or SCaaS.
With that said, that's not too different from existing cancer treatment drugs.
Edit: I’d really love to know what these damn down voters are thinking. You literally think everyone can just be a trillionaire? Where is the value being produced? Where is the money coming from? Trillionaires passing each other money around???
Compared to the richest person alive in 1923 or 1823, or 1023 for that matter, we have a lot more at our disposal. In this sense, we are much richer than them. You could be the King of England and if you got cancer, it was lights out, no exception for His Majesty. Going still back in history, even Genghis Khan had to defecate in a desert and wipe his behind with his own fingers, though he ruled of majority of Eurasia at some point.
Contemporary people aren't all trillionaires, but they certainly enjoy a much higher standard of living than tycoons of yesterday.
(I say that in jest, but it's awfully typical of how governments do seem to solve problems. "Trillionaires can buy whatever they want, so let's print enough money for everyone to be a trillionaire!" is awfully similar to "People with college degrees have higher lifetime earnings, so let's make college free so everyone can have a college degree!")
All the commodities humans need for huge increases in per capita wealth are plentiful throughout the universe. NASA wants to explore an asteroid that just by itself is worth $10 quintillion because of all the precious metals in it. That isn’t even the biggest one discovered. There are going to be endless asteroids and entire planets like these.
And there will be endless planets that can be settled and colonized and terraformed.
This example has nothing to do with this specific asteroid, but it makes the general point: If the amount of gold available doubles over 50 years, the market could probably handle it. But if it goes up 2x per year for 50 years? The price craters.