Undoing Propaganda 101: The Ring Finger Omission

Undoing Propaganda 101. So much is just in the details. Like a furniture truck I saw this morning. A couple pictured on a divan in 'their' house (I think we can assume). Snuggled quite nicely together, her hands plainly visible---was the nakedness of her ring finger an accidental omission? In this age where marriage is put forth as an undeniable right for any coupling, does it not seem a bit odd that the same folks  seem quite loath to promote it for the traditional male/female?