But it is. We have progressed out of slavery over the years. Without those who were staunchly pro-slavery and who profited from it mightily dying, they would have been fighting against abolishing it to the tooth and nail over the years.
After we have been molded in our childhoods, we don't change from that very radically. Certain imprints just stay with us the rest of our lives. If billionaires would be able to live forever our world would divide heavily into those who could afford to be demigods and accumulate wealth in perpetuity, and those poor buggers who would toil away in the companies the rich would own.
Maybe at one point the cure could become universally available. But the aristocracy of super-wealthy would remain and the gap between the poor and the rich would become magnitudes greater than it is today.
But the reason they progressed out of slavery wasn't death but because free economies were far more productive and those which were more meritocratic than hereditary casted as well. Contrary to the popular "salty aristocrat origin" memes of new wealth only from exploitation and wealth only being ill-gotten they tried factories in the South Antebellum - they largely failed in comparison even with literal slave labor.
The point isn't how profitable slavery is or was. The point is what would happen if people who don't follow moral norms lived forever having accumulated a lot of wealth. If in this current system wealth is concentrated to a very small percentage of people, surely this would only increase given longer lifespans.
You are making the point that death promotes _change_. Not that it equalizes anything. That's a point I 100% agree with, except that you're saying that point is disagreeing with what I said. Because it doesn't :P
After we have been molded in our childhoods, we don't change from that very radically. Certain imprints just stay with us the rest of our lives. If billionaires would be able to live forever our world would divide heavily into those who could afford to be demigods and accumulate wealth in perpetuity, and those poor buggers who would toil away in the companies the rich would own.
Maybe at one point the cure could become universally available. But the aristocracy of super-wealthy would remain and the gap between the poor and the rich would become magnitudes greater than it is today.