@klatuns
Person A has the beauty, and Person B will pay money for that beauty. A perfectly fair and straightforward transaction. However, there's a fatal problem here: your beauty will inevitably diminish over the years, while my money isn't expected to diminish without a strong reason. The truth is, my income will likely increase from year to year, while you won't be any more beautiful in a few years.
So, from an economic perspective, I represent an "asset" whose value increases over time, while you represent a "consumer" asset whose value decreases. If your beauty is all you own, things will get worse because you won't be a normal consumer product, but rather a product with a very high depreciation rate that will completely expire within 10 years.