What makes me feel motivated most is helping people. I don't really care if what I'm making is "cool," "disruptive," or whatever, I just like creating tools that other people find useful.
That's great. You mean it from the perspective of helping people with your product, not from the perspective of helping your teammates, correct?
I mean both. I try and balance "helping my teammates" with actually getting work done, but the positive experience of using my skills to help someone does help me get through the day.