Corporations that are "for profit" don't put profits second, ever, they may at times like to appear to do that for PR purposes.
Profit is their reason for being. I presume they get a slice of the pie from those shopping channels, probably not much, but then it takes little to add them.
I'd guess IF we could pick and choose our specific package, it might end up costing us more than being given 500 channels, 450 of which are garbage.
Every new car sold today has power windows. Why? Because it is cheaper to do that than manage two parts streams to provide something cheaper that has rollups. Offering manual windows would cost more.