If i am Elon Musk, i wouldn't create meme coins. Will take advantage as influencer and owner of big company to create coins that can have correlation with his product. Or maybe buying something from him, create many merchandise that accept his coin as payment, or maybe to be company that can help people pay something around the world with his coin. Because with his power and money, it can be realized.
Yes, this is more realistic than making pointless meme coins, I'm more sure if an Elon makes a real coin and takes advantage of his relationships from influencers, it will make his project a success as long as the project is related to the products that Elon has, because it will be a real function of a coin.