I don’t see it as a matter of being a bad person or not. When I use GPL, whomever uses my software may be “evil”. The difference is whether or not they grant the freedoms I granted them to view, modify, distribute, and distribute modifications to whomever uses their version of the software. It is a requirement to pay it forward. Evil or not.
Many people presume that if someone is speaking a different language, they are talking shit. I’ve regretably been one of them, but sometimes you aren’t wrong (RE Chinese people who speak Chinese and the "ABC"s who don’t)