it is something each person needs to decide for themselves. Several months ago, I think in November last year, I noticed two whale size votes on a stolen picture, I notified both people. One removed and down voted. One replied I like cats, the vote stands. His pleasure came first. There is nothing wrong with that, there are people all walks of life that will buy stolen goods. They see nothing wrong with it since they did not do the stealing. I can't remember if I muted the person, or just moved on. I likely muted but can not be sure, since I was still pretty new to steemit then. The other person, was very nice about it, and I still on occasion get a fairly good vote from them.

We can try to change people, but it rarely works. We can point out the error of their ways, but if they do not see it as an error, nothing with-in them will change.