"Increasingly /.../ Google presents links to its own services, like maps, Youtube videos, local business results and product search listings. Executives argue t

"Increasingly /.../ Google presents links to its own services, like maps, Youtube videos, local business results and product search listings. Executives argue that providing these easily accessible results clearly benefits users. Rivals claim that this is self-serving, and that Google promotes its content even though there may be better material elsewhere." I am not sure whether this argument holds, since the Google Search itself defines, what is a "good material" and rank it.