I'm a programmer so I'm gonna answer this like its an algorithm, here goes:

to_love=sharing
sharing=happiness

when the human_being runs the above algorithm in his/her life it looks like this:


If the above algorithm is not run it looks like:
get_off_my_lawn

Basically OP you are seeing increased access to a sharing medium and calling it narcissism (a disease mind you), when in actuality it was no more what Gutenberg helped instantiate

Guess I should delete my shares in the Gallery, would hate to be considered narcissistic....