The bottom 80% or so are indeed interchangeable and disposable.

So are the top 20%. Do you know what you and I and the rest of humanity are? We're bio-robots, with inefficient organically grown-over-time programming. In the future, we will be able to correct that.

If you're one of them, it would explain why you're completely unaware of how the top quintile lives.

*shrugs* If it please you to think of me as such. You automatically dismiss those you deem inferior as such anyway, regardless of the actual correctness of your assessment.