Fred Astaire and Ginger Rogers generated more human happiness than many do-gooders.
In the comments to the YouTube videos of their dance routines, you can find many people (some of them, I assume, young people) lamenting the death of this type of entertainment, class, style, grace, and romance:
Astaire and Rogers created their own world, their own atmosphere. Although it reflected something of the atmosphere of their times, it was a fantasy version of it. Their charm, their humor, their lightness, the poshness of their art-deco sets and Ginger’s sexy yet elegant gowns, the way they made it absolutely normal to break into song and dance as the best and most natural expression of themselves—no one else did it, and I doubt anyone else ever will. One of the most subtle and effective things that Astaire and Rogers did was to sing in a way that didn’t attempt to make their voices technically perfect (that would have been a futile endeavor, anyway) but only to be faithful to the words and tunes they were expressing. Note, also, the believable way each of them listened and reacted while the other was singing. You see Ginger doing it here, but sometimes it was the other way around.