You get hired to be the subject matter expert on economic models, then you remind executives who consult with you that their plans don’t get better just by adding computers (or fancy math of any form).

Eventually, even when you get fired because they tired of you being a nag, you write down all the times your nagging was right, and someone else hires you to be the math nag, because corporations have accepted they need them — even if they’ll also eventually fire you for being right.

There’s easier ways to make money with the same skill set.