From the fact sheet link by Op:

>Advertisements that cover multiple jobs, promotions, or transfer opportunities can include salary ranges that are specific to each opportunity.

For reference since someone else linked their listings JP Morgan is now listing the salary range for each possible location. (Even when the ranges are the same for every location)

Also if a company is looking for NYC workers it's not in their interest to put $60k on there if HR doesn't expect anyone in NYC to take the job for less than $85k.

Now that the numbers have to be there employers are probably going to want them to be accurate. A falsely low minimum and employees that have other options don't even apply. A falsely high maximum and companies waste time doing interviews and giving offers to people that turn it down because they were expecting a much higher offer.