There is no need to because most users don't care about those things, they just want a machine that works and will last for a while; there is no controversy regarding those things. As long as it gets mail, surfs the web, and does light document work well, they have a machine that meets their needs at a price they can afford. They'll never really need to upgrade their machines so more memory and a higher price is a worse value proposition.
Spot-on. You nailed it for millions of happy Apple customers whose computing needs are light or modest.
Not everyone needs a computer to find the next prime number or decrypt secret military communications from hostile foreign countries.