i don’t think there’s actual true evil that just wants to kill everything, there’s allways a philosophy or thought behind it, like vengeance, screwed sense of morality or judgement of things, that’s how things have motivation to be evil, they do it selfishly without concern to others lives or opinions.
as we know ashe, she’s just a robber because she didn’t get enough attention at home so she made her own kind of family, she’s actually less evil than doomfist or moira or reaper in that sense, she’s not really out to kill people for her own selfish reasons.
that’s how i see her though.