My theory on this is becoming - because the nerds that would care all work for the Big Five and as such think it's ok because "we're not evil". Once that crowd gets quieted then there's no on to raise the flags for others.

People care, but those who do are not working on them and their voices get drowned out by the "push the web forward"/"progress is always good" crowd. I suppose there is a bit of cognitive dissonance among developers of such things too.