Let me get this straight: A billionaire CEO is a communist?
Communism would be advocating that the government take his assets - all of them.
At least the theory of it being different is a distinguishing feature.
What does pulling the ladder up behind them have to do with communism? This is not dissimilar from incumbents attempting regulatory capture.
Are they advocating for the communal ownership of the means of production? If not, they are not communists. Unless you're just using commie as a placeholder to refer to any political ideology you disagree with.