You say no but you're not disagreeing - you're saying that there's enough space in the middle of the pyramid for all the people who didn't drop out of school which AFAICT is orthogonal to GP's point, that there's not enough space at the tip of the pyramid for all the talented people who work very hard.
There’s obviously can’t be enough space for every moderately above average person who works very hard… since that adds up to tens of millions to hundreds of millions of people across the world.