This sounds like it makes sense but you might be forgetting that all those politicians get a lot of their excessive power through funding from wealthy donors, i

This sounds like it makes sense but you might be forgetting that all those politicians get a lot of their excessive power through funding from wealthy donors, i.e. billioinaires. We can also take a politician's power away in a functioning democracy. It's just very undemocratic to have the most important matters in society being largely managed by single or small groups of individuals who have grossly disproportionate levels of power and little accountability. And this is what we're dealing with when giant private companies are in control of things like our access to information, healthcare, transport, etc.