While it’s more interesting for Eve to fly around fighting crime, putting out fires, and building habitats, I feel like realistically her powers would better serve humanity in a much more boring capacity. Seeing as she can create just about anything, she’d probably do the most good as a resource factory: churning out water/food/turbines/vaccines around the clock.
If you were in charge of Eve, how would you do the most good?
Since she can manipulate matter at an atomic scale, we could start by destroying all the microplastics around us…