To the extent this is really a problem, it's broader than people focused on single companies seem to want to acknowledge. Globally, there are employers and employees and some balance of them such that the number of people employed in a functional economy is a huge supermajority and almost has to be for the health of the society.
Just as not every child in Lake Woebegone can be above average, this means not every company can only hire highly driven overachievers. As a company grows, its workforce grows and becomes closer and closer to the traits of the larger general population. If you ever grew large enough to be the only company in the world, your workforce would be the general population. At that point, it would be full of below average people. The only way to keep them out forever is to not grow. They're not the "wrong" people. At societal scale, to at least some employers, they're the only people who exist.
Just as not every child in Lake Woebegone can be above average, this means not every company can only hire highly driven overachievers. As a company grows, its workforce grows and becomes closer and closer to the traits of the larger general population. If you ever grew large enough to be the only company in the world, your workforce would be the general population. At that point, it would be full of below average people. The only way to keep them out forever is to not grow. They're not the "wrong" people. At societal scale, to at least some employers, they're the only people who exist.