I recall an anecdote about a programmer who fucked something up in his company to the tune of $10m, couldn't fix the issue, that $10m was gone.

Management calls him in, sits him down, he already has his resignation letter. Management tears it up: "We just invested $10m into your education; you're not leaving us now."

Anecdotal, but the lesson is pertinent. This was $300 invested into an education for all the staff - and the business owner.