College programs teach both things. Then you go into the working world and it's just not what most people spend much of their time doing, not because of some oversight or deterioration in society or something, but simply because there are more important things to do. And this frustrates a lot of people (especially young people) who loved that part of school and maybe even got into the whole thing because they loved this part of it. Then sometimes those frustrated people (or in order to avoid becoming frustrated), people spend a lot of time on it, even though it's really not the most important thing to work on. And that's fine and all, there are definitely worse things to spend time on, but it also makes sense that a lot of other people spend all their time on the higher priority things.