Once I transitioned to Elm and Haskell, I saw bugs almost disappear. I didn't improve as a dev, I just used a safer language.
Especially when money is involved, correctness and safety should be the number 1 priority.
You can put any script kiddy in front of them and get a "working" program.
> Once I transitioned to Elm and Haskell,
My first question when I heard of Haskells main features: "What does a planet from Star Wars have to do with programming?". Haskell is not a source of cheap programmers.
> Especially when money is involved, correctness and safety should be the number 1 priority.
When money is involved the first priority is a cost/risk evaluation. Generally the people involved in that evaluation don't have much of a personal risk so the number 1 priority is to reduce the cost.