I hate how much emphasis is put on economic value. I love math because of how beautiful it is. I went to uni for math but ended up switching to theatre because of how it was taught as just a means to an end rather than an art form in itself.
During my freshman year of college, I was in a general chemistry class. Halfway through the semester I wrote a little Python script that encoded mass of a whole bunch of (not all of) elements and wrote some functions to calculate mass of compounds plus a few other useful quantities. Homework was online so I didn't have to show work - I would just type in the compound and whatever I wanted to calculate. If not 100 hours, it saved quite a bit of time!