I've gone through the process twice (and lost out both times, so you can take or leave my advice), but I'd say only include those outreach and broader impacts type of activities that are relevant to science. Remember, you're essentially writing a research proposal in the hopes of being...
The last three criteria can all be satisfied by research that recognizes its own place in society, meaning, that one can explain that this research will have a broader impact outside of this one project. Here is roughly how I think I devoted my essays towards each criteria: Personal Stateme...