My building is more or less representative of what most would consider the upper echelon of renters, i.e. older folks dipping their feet into the downtown lifestyle, downsizers who sold their homes and are waiting on their purchased condos to complete, professionals waiting for an opportunity to purchase or who don't want to purchase, and students with financial help from mom and dad.
And yet in my building the difference between my all-rental building and my girlfriend's condo that permits rentals is extreme. The building management has to be commended for how well they deal with the maintenance, etc., but some people are so lacking in common courtesy and basic respect for their fellow tenants that you are left befuddled.
In my girlfriend's building the issues are 1/10th as pronounced as they are in my building, and and I'd wager 90% of the issues in her building are courtesy of renters.