I think it's a matter of expertise. I am stuck dealing with people who write Javascript/Typescript like it's C# because they're C# senior devs. It's not world-ending until issues of speed, scale, or other "why we use best practices" raise their ugly heads. Then it is world-ending. I can only help with so many design standards when you still see everything show up in a classes-and-subclasses mindset with hard-to-catch concurrency bugs. I actually caught a developer trying to spin up a child process to wait on a socket response.

So in FinTech, I can imagine it becomes a bigger deal faster.