Asking a digital photog for unedited images is like going to restaurant and asking the chef to take a steak out of the freezer and slap it straight onto a plate and serve it up.
Well he didn't have to cook it so it's cheaper, right?
No. You pay for the steak AND the cooking of it.
It's nothing like that, unless you were in the market for frozen steak. Perhaps a better analogy would be a steak at a fine restaurant and a 'tube steak' from Weinerschnitzel. I'm not going to eat the latter, but someone out there does, or they wouldn't be in business.
I agree with your philosophy, I don't even let my wife have photos off my camera for her Facebook until I've done my thing, but I'm not here to put my philosophy on others. There are plenty of run and gun markets out there, from Sports guys, to the ultrabudget Realestate guys, to journalist, to business planning types, to even - sadly - wedding photographers. If a market didn't exist for them, they wouldn't be out there. I think there's a better way to do it, but if it works for them who am I to tell them otherwise.