>>50846177She is the villain of her game primarily because of what your character is already guilty of due to game mechanics.
These are the best (serious) lines of dialogue in all of pokemon imo. She calls into question the entire validity of catching and using pokemon as commodities for battles or collections way better than the entirety of team plasma did, and the only reason you're there to stop her is because she does it at the expense of her family. Replace Lillie and Gladion with useless dex filler shitmon you caught on route 1 and you are basically Lusamine.