I think there should be a badge for having a certain number of your answers accepted, either in general, or in a specific tag. It would exclude Community Wiki and Self-Accepted answers. There could be different levels of badges. It's probably similar to the Unsung Hero badge, but score would be irrelevant.
This would help incentivize and reward someone who answers the questions well, without tying it to a rep score.
Related (but not 'for all' questions).
EDIT: Think of those who work in niche tags, put hours into their answers, and are lucky to get a few votes with their accept. This would reward them more for the effort put in.