At my dd17 school there is tiered pricing in the housing. It does seem driven by Greek life more than by socioeconomic factors. Those that desire (and can afford) the steep price of sorority life ($8-10K+++/year) flock to the cheapest high rise dorms (mold, dirty, small) because of their proximity to the sorority and fraternity houses and parties. The honors students and most students who are on merit scholarships (so tuition is covered leaving only room and board) are in the newer suites with small private bedrooms, small living rooms and kitchens in hotel like buildings. They are very good for getting sleep, studying, and eating healthy.
The school also recently built more moderately priced doubles with in room baths but not the full suite style. We appreciated the options and took advantage of the private bedroom of the honors suites to give some study space. I really hadn’t thought about the segregation issue. My dd found people of different backgrounds in her building (most expensive housing costs) because it was the honors dorms and many of the NMF had full room and board included with their scholarships. The sorority was where she found the most segregation by wealth, not her top tier dorm.