Elon is a businessman, and the reason why he purchased Twitter is to make even more profit out of it. If you compare Twitter with other social media platforms such as Facebook, you can notice that the market cap and net profits are only a tiny fraction of what is expected. Hopefully Elon will be able to monetize various avenues in Twitter and generate more profit. And who knows, he maybe able to expand the user base and make the platform even larger than it's competitors. And more importantly, he will be able to make Twitter a politically neutral platform.