I have just coined a new term: (Programming) Language Silo
In many cases, developers and quants' monolog interiors seem to be driven by their fascination/obsession with a single programming language (Sapir-Whorf again). This is caused by idiosyncratic views 1) efficiency, 2) elegance, 3) personal preferences, 4) not business-driven.
C++ is being 'attacked' by proprietary, non-mainstream 'quiche' languages (Rust and GO spring to mind).
At this moment in time I think C, C++ and Python are good ones.
I never get asked "How do I design maintainable and flexible software systems on time and within budget? It says buckets about the educational systems. Looks bad.