Back in the late-90s/early 2000s boom it was not a secret that enterprise corps pushed universities to teach Java because they wanted easily-replaceable widget engineers engineering easily-replaceable widgets.

On the opposite side, startups building on difficult languages like Haskell, Elixir, Erlang have a built-in bias towards hiring a team that can get a lot more done with a lot less people. Great for startups. Terrible for enterprise.