Quite early on you have a difficult choice
spoiler
You need to choose between saving 2 cities with each their respective companion, that will result in one of those cities being overrun by the blight and that companion becoming distant. Turning it into a hellscape with even more consequences than I type here.
So I don’t share your opinion.
Depends on the programming job.
In my amateur experience, the most difficult math I had to do was use the Pythagorean theorem to calculate a point that was spinning around an other point.
But I can see needing to be able to use matrices in some instances.
Being good at math allows programmers to code more efficient systems. Instead of doing multiple complicated lines, it could all be incorporated into a single efficient equation.
Most of programming is just logic based. Although math is also logic based. So take from it what you will.