$2400 a month for a 1br apt built in the 60s covers a lot of wear and tear, especially when you have maintenance staff making $10/hr doing all the work. If I add up all of my maintenance costs over the past 5 years, I'd be very surprised if it totaled over $1k (paint that they charged me for, a small window, a small drywall patch, carpet that they charged me for) .
It's also hard to feel bad for home owners renting half of the property they live in to cover their mortgage while their property values increase 10% a year. Apartment residents meanwhile are building zero equity and eroding their chances of ever owning property.
Real estate is a hugely profitable business due to the perpetual license granted by the government to extract infinite rent from the property.
I have friends who just pay professional management companies to do billing, maintenance, and lease management for their properties. All they do is write a check to the management company and they get to keep all the profits. No, I don't think what they're doing is a real job, they just happened to have enough money to afford a few down payments on houses, and now they're getting something for nothing.