why are frats so into their ranking?

Why are the frats more likely to comment on their ranking than the sororities?

There is constant debate, discussion, justification, etc. Look at Cornell with only 1000 comments and there are 5000 in greek life, at Penn., there are 3000 in Greek Life and 900 comments, UVA 2000, comments for 4000 in greek life, UC Berkeley <3000 comments and 2000 in Greek Life, Dartmouth 700 (2000 in greek system) compared to Michigan's almost 7000 comments about greek life with 5000 in frats/sororities.

What is this saying about Michigan? The more competitive the school, the less likely people are to comment on Greek Rank?