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?
Probably creating rare materials like lithium that have a heavy human and environmental cost to mine, or help create material for abundant nuclear power.