I sympathize with you, because I have been in a similar situation. I was in mathematics because it fascinated me, although sometimes more than others. The reason I left mathematics research was not so much that I got tired from all the moving around, but that I wanted to do something "in the real world." I felt that my kind of research was hard to justify to anyone but a specialist, and that mattered to me.

But when I started to make an inventory of options that were available to me on the regular job market, I found out, exactly like you, that the vast majority of jobs for which a mathematics degree is a requirement (or even a plus) struck me as particularly "soulless." I know that might strike some as harsh, but I don't mean to be, that's simply how it felt at the time. I was in mathematics for the joy of it, and it is hard to square this with the purely utilitarian approach to math you find in finance or data science. 

In the end I got a job in software development, which at first seemed just as soulless or maybe even more. However I never regretted my decision to leave mathematics. The joy that mathematics had to offer that I just mentioned was of a very elusive kind: sometimes it was there in abundance, but I could never hold on to it. It wasn't a constant stream of inspiration, and what's worse I rarely experienced it during my own "research" (if I could call it that), but almost always by reading about the exciting work done by others. And it didn't have to be cutting edge either. 

So yes, quitting the academic career path was a major adjustment, and a period where I experienced loss. I was no longer allowed to devote my life to the pursuit of knowledge and understanding. Worse, I started to question whether I hadn't in fact thrown away fifteen years of my life. But there is light on the other end of the tunnel. These are after all not math problems, but life problems. If you make a decision that you *know* is right, then, with God's grace, it will prove to be so in the end.