Recently came across two videos,

The first is a young man who failed in his startup and now sells braised meat rice at a construction site. Because of the large quantity and filling nature, he has become a internet celebrity, and many netizens have also sponsored him.
The second is a young girl whose family is slaughtering a pig, posting a video asking netizens for help. As a result, thousands of people showed up to join the fun.

I think, these are the meaningful videos in the internet age.