The presence of Greek Life did not matter in my college applications. I applied to 2 Jesuit schools (ND and College of the Holy Cross) as well as Annapolis in addition to 3 universities with a small presence of Greek life. Obviously I ended up at a school with Greek Life but that was not even in my decision process when I was making my final decision.
It did matter to my daughter. She wanted a school with Greek Life. Although I was neutral on this issue, I think she recalled all the wonderful experiences that I have had as a connected alumna. Her Fighting Irish great-uncle really wanted her to apply to ND (and bribed her with the Uncle Joe Scholarship

) but she ended up not pursuing it because of the lack of Greek Life (and the rotten weather).
My son talks about being a xxx (my brother's fraternity) at Carnegie Mellon or being a zoomie at USAFA. GEN Alum is not pleased....