For example, all the classroom aids are typically assigned as teaching costs. But the reality is that they are assigned to individual students with IEPs (individual education plans), ergo, they should be categorized as special ed.
Same thing in pulling out transportation. Or tuition to other districts. Admin dealing with special ed grants and recordkeeping. It goes on and on...
On the other hand, as a way to provide social services to underprivileged children they are pretty decent. But that's not what they're advertised as (school isn't known as an acronym for Social Care and Health Out Of a Location), and people end up pissed.
The absolute dollar amount does matter, and it has nothing to do with being assholes or not. There are different ways to meet children's needs and spending an infinite amount of money is just not sustainable.