Traffic influences Google when it comes from Chrome sources with statistics enabled. The problem is that some networks don't offer real traffic or the traffic has been manipulated with poor quality users that obviously are not going to use a real Chrome browser and, even less, with stats enabled.
So it's a coin flip, with very high numbers you may get a couple of good clicks incoming. I used to do this for some old little clients I used to have to show them a temporary boost in ranks (kind of deceiving, not gonna lie). But they were very little (less than 1K visits per month) and I had to spend like $100 just for a single page to be boosted.
If the site is bigger, I would prefer to fine grain with CTR boosting some specific keywords.