I'm an undergrad majoring in math. I like it for the generic reasons that math-majors like math, but I'm concerned about what I'll do for a career. Ideally, I'd like to do something that is "useful". The vague, dim ways I've conceptualized possibilities as an undergrad is epidemiology or majoring in math-econ and doing consulting work for nonprofits. On the other hand, I'm not entirely sure those ideal jobs exist. Tl;DR: What are math-intensive jobs that will let my assuage my Catholic guilt? Thanks.