Well, not sure if bottom of the ethical barrel, necessarily.

It's just that their (creativity, intelligence, innovation, drivers of progress) / (cash they own) ratio is mindblowingly low. And this is due to both the denominator and the numerator sides.

Facebook is the new Microsoft, basically. Low on creativity and innovation, high on cash, riding to success a huge wave of demand that would have carried anybody else who just happened to be there at the right time.