While I understand the concept of A, B and C employees to the employer from the PoV of the employee there is also management attrition and lack of incentives.
I argue that in many cases owners and managers, those who are posed to benefit from this ideology, are the ones which poison the mindset by punishing proactivity and being arrogant. There's also D employees, those that are unable to create value by the conditions set forth, they recognize the pointleness of their job and actively do the minimum and create excuses just to not get fired.