As far as I have understood, Bitcoin is the Internet of money, using blockchain technology that is open, transnational, neutral, censorship resistant and there is no third-party controlling the network.
As far as I have also understood, altcoins usually always have founders, they have developer teams, they are basically closed, private, non-neutral, non-censorship resistant networks with a trusted third-party. Please, correct me if I am wrong.
So, my question is: Are altcoins private companies with private interest to make as much money as possible? Or have I understood something fundamentally wrong? I have tried to Google the answer to this question but I can't find anything. I hope someone could enlighten me a little bit on this issue.