when i rp large and there`s a choice to be one the “good” or “bad” side i always choose bad.or neutral as possible.my OCs are usually not bad but i put them there anyway.I dunno maybe I just want to show that everything depends on the point of view. It is not necessary to be evil even if you are on the “bad” side.If you lived most of the life as a part of “baddies” without seeing other possibilities you won`t even know that you are considered “bad”. also that “bad” would most likely viewed by you as “good” for a lot of reasons.because you`ve been brought up with “evil” norms and you`ve been told that it is the only and best waythat it is good for you and those like you,et cetera. Same goes for the “good”. You can be on the side of oh-godly powers and still be an fucking asshole. Also the “light” which can also be viewed as “order” can be much more corrupted with its system of keeping the order. And have much mo strict and horrible interrogation systems because WE CAN`T LET ANYONE IN WHO`D RUIN OUR PEACE AND ORDER. Each medal got two sides.
"Evil" one can sacrifice themself so their friends, loved ones and kids could stay safe. "Good" ones can abandon everyone for their egoistic reasons and to keep their reputation "clean". Evils can save people not only because all the living things are needed to empower their force but also because they are living things and additional deaths were not planned,so evils save citizens. Holy paladines could decapitate the same town/village/whatever whole because everthing where “evil” passed through could be also considered evil and corrupted.
tldr; My point is that even if you are on the dark side it doesn`t make you automatically evil or bad. Light side also is not perfect.