>>51470559it would cool if as the story progresses you by technicality become an "evil" team leader. you would start out as a normal challenger, but after you maybe show too much promise (the kind that can't be controlled) or you witness something your not supposed to (and get away without them knowing), you become disillusioned about the region and the gym challenge as a whole, and then begin to rally people to help dismantle it (probably your rivals at first and then maybe get some gym leaders who aren't that bad to maybe help).
whether or not you get the "true ending" is whether you do certain side quests, to help people and convert them to your cause, or to find damning evidence and giving it to the right people (you may be able to convince an interpol member that your not in fact a terrorist)
if handled right, it could be pretty cool