Earlier quoted context omitted.
Once you get to the top 1-3 results, CTR (click through rate) is a much bigger ranking factor. Google knows how long people stay on pages and whether they click and back out immediately. This is important for E-Commerce, because Google doesn't want Site #1 to be mostly out of stock even though they have better links.
> Google knows how long people stay on pages and whether they click and back out immediately. What if I to keep the search page open and open the "found" page in another tab?
I think control-click is a power user feature that they just don't care to track. Average consumer is the target audience of the advertising...