Value of knowing financial modeling aside from jobs

For those who know how to make models on excel, do valuations, dcf, etc all of that, and have exited or are planning on exiting finance into something different, like law, engineering or anything else non-finance/business related, do you think it is a useful skill to have? (I guess for personal investing reasons or such)

Or once you exit finance, are they just totally useless skills that fade away