What's Up With the Cost Thing?

I don't know why these health studies always tell us how much of a cost a particular ailment is to the greater society. In this case the study is about autism. If we catch it early we can create a whole bunch of new expensive programs and special schools and how much is that going to cost? I'm truly searching for a reason why parents of autistic children need to feel that responsibility for their child being such a burden on society's wallet, they have much more immediate and personal needs to attend to.