I believe the concept of a meme is actually much more universal than metaphors and funny, although a majority may fall into that. It’s more of a ‘unit of information’. Like when a meme is using a photograph of a scene from a tv show, that moment in the show may come with a series of emotions and thoughts that are shared between people.
A metaphor comes close to it, but for everything that we consider as a meme it’s not broad enough IMO.
No one is successful enough to be a billionaire. Accumulating that amount of wealth is not a result of hard work, it’s a result of exploitation. Begrudge all billionaires