Board Thread:General Discussion/@comment-26814804-20160426044150/@comment-27620479-20160426072051

Yes, I have noticed, but it isn't really my business. I don't do genocide.

He could mean it figuratively, like it is his self-appointed task, but he is canonically a sentry (even if not a really keen one) for the Royal Guard. Undyne even counts on him stopping you at the Hotland bridge. So, it would be his job, he just doesn't care doing it, until he can afford that.