That doesn't feel like a very convincing argument if you already believe that Elon, Donald, etc don't have the interests of the American taxpayers in mind... Given that they are also American taxpayers.
Let's be honest, if someone hates Elon/Donald/etc. then there is no argument that will convince them that everything they do isn't the worth thing to ever happen to America.
I don't passionately hate either, I just can't follow your logic. If these men are working to make six-figure salaries more profitable, then they could absolutely fuck over the majority of Americans while lining their own pockets and that of their employers.
How are the real taxpaying Americans supposed to hold them accountable? Where is the oversight board looking to ensure essential social services stay available? It all seems like a recipe for disaster - love them or hate them, Elon and Trump have obvious conflicts of interest that make this process disturbing.
Because they are American taxpayers.