Please be cautious in interpreting University rankings. The most recent methods applied have been particularly problematic. See this article for more details:
On Academic Rankings, Unacceptable Methods and the Social Obligations of Business Schools – Decision Sciences Journal
Thank you for your very good comment that I fully agree with you. There is need to really look into credibility of these so called "Rating Agency" and unfortunately ministries of education in many parts of the world subscribe these results to their chest.
We hope the rational mind-sets must prevail before these agencies have done enough damage to intuitions of higher learnings.