More or less coins has absolutely nothing to do with utility, volume, market cap or network effect.
Its just a number. What matters is the other elements. Control of supply with pegging is done to eliminate the need for a market maker. To have supply move up and down to match volume and demand.
The us dollar is a racket, so who cares what its value is. Because there are guys who have infinite spending power, so thats why we use crypto.