I worked at a phone company call center, back when landlines were more common (20+ years ago). I worked in an inbound call center, where everyone was late on their bill or already had service turned off. We literally didn't have the tools to help with a billing dispute, if that's what wound up causing the issue. We had limited ability to even discuss bills with customers.
Pretty much, we had the ability to help with their late phone bill.
And as frustrating as that is, I figure other companies are the same. It isn't "no incentive" to help, but they are probably stuck without any tools nor abilities to actually help. It isn't even lying, just a crappy way of running a company.
And it is very common. It does mean that it is easier to train folks: We already had a decent amount of training at that job, both classroom and non-classroom, but it was just enough to do our jobs and follow various state & federal laws.
No point in throwing the masses of low-level employees under a bus and crap on them when the likely culprit is corporate policy.