Immortality is absolutely not compatible with our current capitalistic social system. Whenever you see startups and rich guys financing research in that domain, there is never any talk about giving it away to hoi polloi like you and me. Death is the last economic redistribution system still standing - and when you see they are doing everything they can to nullify any inheritance tax, you can imagine they don't intend to give away anything - fortune, position, power - once they become immortal.

And imagine the North Korean or Russian dictators (or American "President") having access to the technology.