It depends on your perspective. As far as I'm concerned the whole target advertising industry is a blight on society. The more click fraud undermines it, the better.
On then other hand, bot accounts help get bozos elected, encourage mass shootings, etc.
Come to think of it, I don't think it depends on your perspective. Bot accounts are a much bigger issue than click fraud.
But who does the click fraud ultimately hurt? It's not Googs. They get paid for the clicks. The people spending the money on Goog's platform are the ones hurt. Why would Googs want to put a stop to it?
> The people spending the money on Goog's platform are the ones hurt.
It goes deeper. The increased marketing costs due to the 'fraud tax' are passed through to customers. So it's we the people who are getting screwed by fraud.