The fact his the man behind the idea of building SpaceX is already something, not all businessmen were able to do it not even NASA alone before. It takes a leader before something can happen. He can buy companies he wants provided the owner will allow him or he will be able to gather more shares. Sure he will do this to gain more access in social media but preferably for himself, businesses or for his crypto investments.
There is a problem with that statement.
As per the existing laws, he can purchase any company he wants, as long as the existing owners are OK with it. But what is happening now is a sham. The Twitter executive board holds around 0.12% of the total shares (apart from Dorsey, who holds slightly more). Now the situation is like this - Elon wants to purchase Twitter. The Twitter owners are OK with this idea. But a few people (who are not the owners) don't want this to happen. I would like to see how the courts take a decision on this matter. At first sight, it looks like a clear violation of existing laws from the board members.