What if Google is just genuinely serving what people actually want?
A good question: bit of a chicken and egg situation this. People will click on the top results because they believe that G's results are unbiased. They will then conclude that big corporations, that have little knowledge about a subject, are in fact the ultimate expert.
People look at (a) the heading: will this site produce what I am looking for? then (b) How high up is it in the search listings? I doubt if many will click on a search result because it was produced by a megacorp, in fact most of my friends tell me they do the exact opposite.
A search engine has incredible power to shape public opinions, which is why regulation is urgently necessary - provided of course that the regulator is unbiased <BWG>.
Yes there are a lot of 'made for Google' sites out there with spammy scraped content but nowhere near as many as there were when Google first appeared; and for this they must take most of the credit. I remember the days when out of 20 results 18 would be created with scripts. However they are now, in their efforts to eliminate spam, throwing the baby out with the bathwater.
I don't see a mass of spam sites on DDG, the exact opposite in fact, so it mustn't be too difficult for G with all it's resources to eliminate the scrapers and other rubbish whilst still promoting the excellent content creators. And there are still a lot of them, although you have to either dig really deep into G or go to DDG to find them.