On selling snake oil

Google faces €25bn lawsuit in UK and EU over digital advertising
That's the headline in The Guardian this morning and you can read the full article here:
For me, it just proves the point that the whole digital advertising business is a game in which the casino always wins, not just because it's a game of chance with very low odds of winning but because the dice are weighted.
In the business of dentistry, I'm tired of hearing from small business owners who have been duped into spending thousands on campaigns that are incapable of demonstrating a meaningful ROI.
This latest revelation reveals that not only do agencies mislead their clients with false promises but that, further up the food chain, they themselves are being diddled by Big Brother.
Marketing is about people, not algorithms. Don't fall for it.