No, they don't. Very few people are able to juggle 8 pins, but my earnings will not go up if I acquire that skill.
Your earnings go up when you acquire a job skill that people are willing to pay a lot of money for.
> For more conventional skills, you'll never make much money as an engineer if you skip the math classes. I
Define 'much money'.
You can easily make 400K/year at FANG, without having the foggiest idea of how to do linear algebra, calculus, arithmetic, statistics, or really anything but interview O(N) analysis.