I've found a mix with background checks in the U.S; a lot of rental landlords want background checks for the obvious reasons (e.g. housing a convicted rapist with a young woman), employers can go either way, and in my experience it has tended to be reasonable (but I've always worked as a professional, and for people I know through colleagues or acquaintances).
A background check is, in my experience, unusal for renters in Canada, but that might just be my bias, having mostly rented from slumlords and acquaintances.