What good is being really rich if you are just going to die and lose it all.
I've had thoughts along these lines. If there was a secret to extreme longevity, it would have to be carefully kept.
First, it's likely to be extremely expensive, and create murderous jealousy. I think it would be easy to find people denied life who would tear those in possession of the secret limb from limb.
Second, although I know the topic of birth control can upset some here (especially if it involves fetal termination) it is obvious that once people can live many generations, there would be an overcrowding problem. But, that's only true if the treatment is broadly available. Which gets us back to my first point. It just can't be, without some other things being agreed upon. Who would work dangerous, low pay jobs, endangering their eternal life? The treatment would have to be limited to a few.