It's common sense that if aging were solved tomorrow, it would be patented and the wealthiest 3% would enjoy much longer lives, while the working class wouldn't see much change.
Incidentally, longer life would allow even more accumulation of money and power, making inequality worse.
Plus side: billionaires now consider climate change threat #1 and use many more resources to solve it compared to today, rather than only care about the next 40-50 years.