I understand your concern but trust me, if this situation happens ever, it happens incredibly rarely, especially with Walmart and Microsoft considering the thousands of applications they receive. At some point, you have a whole lot of highly qualified individuals, some from diverse backgrounds. The better choice for the company is to pick with diversity in mind through the top. It's just how it is scientifically, it's what benefits the company the most.

That being said nepotism is shit, Idiocracy is shit, but meritocracy is also very much, shit.