I mean you obviously have a point, since Zillow exists despite doing what they do. On the other hand, my parents are buying and selling a house right now and I just encouraged my mom to switch to Redfin based on recommendations in this post. As long as there are people who care about this kind of thing it will have some impact.

Douchebag-driven PR disasters aren't good for biz.

Exhibit A: Uber

That's a great exhibit you can be a total douche company fucking over everyone, and as long as you don't hit a socially superhot topic (e.g. sexual harassment), it won't affect you negatively in any way.