I see no benefits to PvP in FS. Muggings can earn you better money than a crime so they make sense. I haven’t seen anything that would make me partake in an attack on another player except for “payback” for a sin against a friend.
PvP requires its own risk/reward scenario. If I’m going to spend energy and risk getting injured than there needs to be a better reward than I get doing something else. Otherwise I’ll spend my energy and time on those other things.
So…in most other pvp games that I’ve seen you earn experience/currency based on your pvp activities. These can be turned in for gear/advantages that are not available via other means. Or equipment/ships/etc also require spending a certain amount of your PvP credits or have a mininum PvP standing.