Tyranny of the marketplace, I guess. If most people are not bothered by the terrible terms, then the selection of items with non-terrible terms will be correspondingly small.

Case in point: I'd like to buy a TV (even at a higher price) that does not have ads all over the interface. From what I can tell, as of right now there are approximately a handful of such TVs, not counting older models that probably aren't produced any more. And of course out of that handful, most are not very good in other respects..

I don't know how to solve that apart from regulation, which is often a very poor solution.