Do you need to protect 100% of your purchasing power and 0% of your privacy?

Or wouldn't it be sufficient to protect 90% of your purchasing power andn with the remaining 10% you get 100% privacy?

Also, it's highly unlikely Monero will under perform any fiat currency or gold. Its inflation sits at 0.8% (half of gold, half of BTC) and its supply will be smaller than BTCs until 2040.