Agree on all of these points. In addition, knowledge of basic algorithms and data structures can give you a baseline for communicating with others in your field

Agree on all of these points. In addition, knowledge of basic algorithms and data structures can give you a baseline for communicating with others in your field, which can be important if you're working on a big project with lots of other people with different backgrounds. If you've been doing this for as long as you have, then this wouldn't be hard to pick up. You can try going beyond the "Learn Ruby|Python|FooBarBaz" stuff and take an online course in algorithms. You might find there is a whole world of stuff in computer science that could be up your alley if you dip your feet into it, and it would be all the difference between the how you do what you do, and the why.