though in practice the goal is often closer to “be the source of a virulent meme” than anything as prosocial as those examples
An aside as to why this may be: People who are hosts of memes which are highly optimized for creating and spreading memes (such as bloggers, musicians, or politicians) could be expected to have a disproportionate impact on the population of memes, and these hosts would tend to be spreading memes connected to the goal of spreading their memes alongside any object level content. One effect of this may be that an unexpectedly high proportion of people have adopted ideas useful for trying to be meme fountains.
An aside as to why this may be: People who are hosts of memes which are highly optimized for creating and spreading memes (such as bloggers, musicians, or politicians) could be expected to have a disproportionate impact on the population of memes, and these hosts would tend to be spreading memes connected to the goal of spreading their memes alongside any object level content. One effect of this may be that an unexpectedly high proportion of people have adopted ideas useful for trying to be meme fountains.