Who do you think advises students getting into classes, who do you think reviews applications or works with companies to get students jobs. There is administrative over head because these activities are not core competencies of researchers.
People act like a reseach faculty member should be conducting cutting edge research while writing findings applying from Grant's advising students on course course offerings and courting employers while also snoozing with alumni for donations.
Noone can do it all and thus there are specialist in these fields that usually cost a fraction of what a faculty member costs.
At many schools, advising is a professorial responsibility. Professors have a hard job, but they have a job that is very powerful and prestigious and can be incredibly lucrative (thanks to consulting gigs, patents, etc.).
I recall that universities in extremely expensive places like UCLA, Stanford etc subsidize housing and/or provide specially priced housing for staff and faculty. Not to say they are cheap, they are just tolerable given the salaries, which is more than you can say with regular market pricing.
Stanford does have faculty housing: it's made available for the tenured faculty member to rent for life. The school owns the house. The professor builds no equity.
The alternative, given the cost of housing near Stanford and faculty salaries, would be for faculty to live over an hour distant. The university acknowledges the benefit of having faculty live nearby, and also recovers the rent money and keeps the property.
And yet, a lot of Stanford's faculty live right next to campus. It turns out all those startup board seats are lucrative enough that they can actually afford a house in the local area.
People act like a reseach faculty member should be conducting cutting edge research while writing findings applying from Grant's advising students on course course offerings and courting employers while also snoozing with alumni for donations.
Noone can do it all and thus there are specialist in these fields that usually cost a fraction of what a faculty member costs.