The university you attend only matters when you are going for that first job. After that it's all about ability, perceived ability, experience, perceived experience, and how well you interview.
University ranking is a complete and utter load of 75 year old saggy bollocks. How they do the ranking:
They write papers (I can assure you most of these papers are sub standard fluff) and the more they get published, the more browny points they get. Then there's the relationships with "brother"/"Sister" institutions that seem to give them even more credibility. Has little to do with how good they are at teaching or how good their syllabus is. It's all about puncing around like f***wits and patting each other on the back as if they are doing a good job. Sadly a reflection on the corporate life many students will go on to.
Sound like a LaTrobe flog.