I think i found an analogy to make my point more clear, or maybe more unclear we'll see.
Think of Gygax as KarlBenz, the inventor of the automobile.
Now Benz invented the automobile, a handy little transport machine
Gygax invent RPG's as a way to collectively tell stories.
Automobiles can be used to race, but that's not why they were invented.
RPG's can introduce a level playing field, but that's not why they were invented.
Eventually certain drivers started racing their cars, others didn't
Eventually some players used mechanical balancing, others didn't
Certain drivers started building cars specific for racing, others kept building merely for the transportation of goods and people
Certain developers began creating mechanically balanced games, Others kept creating games purely for telling stories without concern for balance
Eventually extremes let to formula 1's and dragcars on one end, and trucks and buses on the other end
Rollplaying games on one end, Dice free systems on the other end.
In the end a ferrari is a car some people like, while a minivan is liked by others, both are cars and neither are a bad one.
but the fact that feraris exist doesnt mean that all cars are supposed to be ferarris
In the same way, just because their are balanced games out there, does not mean that RPG's are meant to be or need to be balanced.
Djeez i hope that makes sense to people.