Most people don't build what you built.
A PC can be had for anywhere from a couple of hundred to . . . over $7000.
The entry fee for a Mac, though (not counting the Mini, which is Apple's *only* current offering below $1000) is $1000.
The entry fee to Windows is a couple hundred.
Draw your own conclusions.
So what you're saying is that people in the 3rd world are SOL because they can't afford the $1000 entry fee for a PC? Even the Mac Mini would run about $1K after you got the monitor and peripherals.