Not really. There's a huge effort going on right now at Google and elsewhere to try to pre-empt that kind of activity. Google has actually done a pretty good job of tweaking their algorithm to stay one step ahead of what is essentially, instead of marketing-based search engine optimization, more malicious search-engine optimization by hackers and by groups who would choose to manipulate them in that way.
I actually think that this will be solvable over time as machine learning becomes more powerful and as they become better at tracking those kinds of nefarious methods. That one, I think, is more likely to be solved—not soon enough, perhaps—to block this kind of influence.