To be fair, why should a long-term employee spend months of their productive time training a short-term contractor who may not last the year?

Ignore for a moment how few to no actual "employees" are being hired, and thus everyone is a short-term temp.

It's just a consequence of wanting maximum gains for little to nothing, i.e. corporate greed i.e. late-stage capitalism.

Bonus points if managers who do spend time training contractors get removed and replaced by those more willing to get in line with the company vision, being more "productive" in the ways that those in charge (Bezos, Musk, Huffman, etc.) can understand and agree with.