* An applied scientist would feel great from solving someone's important problem -- i.e. saving lives, increasing revenue and/or decreasing costs at the end of the day.
* A theoretician would feel great from solving a recognized important problem.
On one hand, the author writes enthusiastically about her side-projects / internships / hobbies. On the other hand, almost all academic remarks end with:
"Our paper got rejected / accepted at [top venue]. We felt sad / relieved."
Without any further remarks about that work -- i.e. it's all "publish or perish" no matter what.
In that way, it sounds as if one was doing research for the sake of producing papers rather than solving important problems / contributing to our civilization by increasing its stock of knowledge. Perhaps that is the sad state of the current academia.