It’s similar to what we see in the Olympics: Algeria getting a gymnastics gold in a historic first for the entire continent didn’t mean it’s somehow impossible for African kids to train up to that level but rather that no matter what raw talent you’re starting with, nobody gets to the top without expensive infrastructure and training which aren’t even distributed. Music isn’t that extreme but there are still a lot of advantages to the artists who can hang in the right scenes in a few cities compared to equally good performers who can’t swing the rest of the career-making package.
There are absolutely segments in the industry that address and include taste and quality, but they're long tail stuff next to the pop machine.