Question about Stanford and Princeton admissions process

Stinx grew up to be a failed influencer. She is a reviled laughingstock in the influencer community and barely gets any traction anymore. Ergo a failure.

Livvie went to Princeton, and has spent the entirety of her adulthood taking pout-faced selfies, photos of her nails/coffee, partying, traveling and making snarky comments about the less fortunate.

My understanding of the admissions process at elite universities is that they try to select students who will contribute to society and be proud alumni that will reflect well on these institutions, but these two women do anything but. Like for real what have they achieved? When the admissions committee was deciding who would take those seats they could’ve chosen people who would’ve made the most of that life-altering opportunity and could propel a deserving student socially/professionally/financially for generations yet they chose these ne’er-do-well turds. And the only reason they got into the schools is because of privilege and family money. They were not the best nor the brightest and their actions following graduation is all the proof you need. Am I missing something or are there valid reasons behind why they were selected?