[gtvwill]

Lol yes. Ethics judgements aren't exactly made by one's self on one's self (unless you really do bad and you live your life in regret). But are generally made by your peers and those around you. Your ignorance plays no bearing on their judgement of your actions being ethical or not. You can be the dumbest deadshit in the world and they can still judge your actions as unethical. So yes you can certainly be unethical, even if your too dumb to understand why.